@@ER_666_ damn bro that’s good as heck. I’m on my second dd15 first one went way over 1 mil until truck was involved in accident had to get another . Bought second one at 500k miles I’m at 880k with no major problems. Only problem with DD15 is the emissions BS. Deleted it........ Sike 😉
Historically I’ve been a Cummins fan, spent most of my career driving Cummins. In the past couple of years I found myself driving a DD15. Just recently I returned to a Cummins. In my opinion the ISX idles rougher an uses more fuel and produces more noise. Conversely the DD15 is smoother, quieter and uses less fuel. As far as pulling a hill I feel like they are both about even. If I were to choose I would now choose the Detroit. It is easier to live with and more economical. As a driver you spend a lot of time sitting right behind a huge motor, you might as well make it as comfortable as possible. As an added bit of information I’ve also driven Cats before they stopped putting their engines into trucks. They were great for low end grunt but I never really cared for them as a highway engine. DD15 has gobs of low end grunt but does really well as A highway engine. The ISX and Cummins in general is a good highway engine. The Detroit is the best of both, in my opinion.
Nah my Cummins noticeably stronger than dd15. Cummins sounds old school and I like it, DD15 sounds gay and european. I’ll take a newer freightliner over a Cummins any day but the engine ain’t better.
I just purchased a 2014 Cascadia with a DD15/13 speed. Got it from the original owner. He spec the truck for himself. $812k miles. Always serviced at freightliner. He’s retiring after 40 yrs on the road. At 70 years old. I bought this truck for a great price and it’s condition. But the main reason was that it’s a one owner truck. Owner operator spec and purchase. It has a couple of minor oil leaks and needs a few little things. But I’m happy with the buy. I looked at a 386 Pete with a rebuilt cat C15. It was good too but I was also looking at repair costs and parts availability out on the road. Pete and cat parts are expensive and hard to find sometimes.
Good video. I have a 2010 & a 2012 Cascadia the 10 has 1,080,000 mile the 12 has 1.1 million. Maintenance on both is the same, cam box resealed, injectors and o rings on oil pickup tube. The dd15 is great.
Hey. I'm from New Zealand. I have a 2017 freightliner argosy with a DD15 565hp 1850ft lbs. 535000kms. The DD15 motors aren't a favorite here in NZ. They may have similar power to a isx but get to pulling up a long big hill and the isx just powers away. But the DD15 does have a better jake brake.
Could it be the transmission gearing and program? I just recently cam out of a '19 Freightliner Cascadia with the DD15 to a '22 KW T680 with the IMX. The Cascadia holds 12th gear for dear life for fuel efficiency, but sacrifice pulling power in the mountains. I can downshift early to stay in the powerband, but it won't do it automatically. At least the Freightliner Cascadia gets excellent MPGs. As for the KW T680, it does the opposite.
It all depends on a gear ratio and transmission as well. On my DD15 455 HP, I got eaton fuller 13 speed smart shift and 3.36 ratio. I'm ripping off most of the trucks on a hills even when fully loaded 80000 lbs. But also, I can go 75 mph at 1500 rpm.
Had two ISX15 2012/2014. Always in the shop with regen/sensor issues. Traded in for a pair of ishift D13 2.64 rear, difference is night and day. Lower fuel/DEF consumption, higher bottom line.
Sounds like you spec’d the first pair wrong for the application. Going down in displacement makes the engine work harder and keeps the aftertreatment hotter and happier. Apples and oranges unless you traded for DD15’s. Just my 2 cents.
@@willmalloy4940 there is a high/low power setting in the ecm. If this is set to high then it is fine as it’s still running original parameters from Detroit. Be careful with deleted DD15/16. The delete place increases the fueling to “add power” as an up sell. I’ve seen big issues with fuel diluted lubrication causing liner failures on deleted engines.
I run a ISX 600 with 2050 tq and flat out eat 99.9% of the trucks out there from coast to coast weekly. We do heavy maintenance schedule oil at 10-12k and PM's always early. Just hit 800K and oil samples show minimal wear. We are hoping the three trucks will in our fleet will hit 1.5 mil each before inframes.
Personally whatever motor you own its life will depend on maintenance and your Mechanic,got a dd15 swallowed a valve at 650k mls decided on an inframe 5mo later still mech bs me around getting another truck cant wait any longer
Great job on video. I have a 8-71 Never had a problem with her it's in my 1971 truck............... Everyone what for it.. But really just love the old Detroits, I allso own a 3-53 In a piece of equipment.
Your right👍 maintenance is key. I have owned the DD15 & had really good service from that engine. I now run a Cummins X15 & am having the same great service. I do oil changes at 20K & the biggest part, VERY LOW IDLE TIME, I mean less that 10%, if you can do that either engine will treat you well.
I’m in Southern California going to run a 75 mile radius. Don’t ever idle even in summer. I’m looking to get a 2016 international 400 Cummins with 200,000 miles. Found one for 3500 down 998.00 a month. Hoping my set up works out in real life operations. Scared but going to move forward
From my experience driving different trucks over the last 5 years Detroits seem to run a little smoother under load. Every Cummins equipped truck I've driven shakes going uphill. I think a lot of their good reputation comes from the pre-dpf engines
Haha their reputation comes from passing your slow ass up any and every hill. Dd15 are complete trash only one that maybe shakes a slight stick is a dd16 and thats iffy at best. Isx, x15 will allll drag your ass all day long and you never see them again
I’ve been waiting 9 months to get a truck so I can head to your shop. and guess what, I Drove all way from Vegas just to get an oil change! I’m excited.
Hola ,yo tuve un pete 387 con un Cummins isx y tuve una mala experiencia,ahora tengo un cascadia 2013 llevo un año con el y ha sido muy,pero muy buen camión,los dos son buenos,yo prefiero el Detroit,Gracias por compartir el video .Saludos desde Victorville California
I drove both. One for Schneider one for western express. Just speaking from driver point of view I'll take the DD15 all day. Way more power and torque. My cummins feels sluggish. Smoother but way more sluggish. The DD15 was a monster in the mtns and just felt way more responsive and the jakes worked way better.
That has more to do with the power ratings on each engine, Cummins has low power and high power engines for trucks maybe you are comparing a 400 hp Cummins to a 500hp Detroit
I drive a cascadia with a DD15 , so far NO issues with engine , only time had an issue was the emmissions only two times had a check engine ligh on becuase of that , so far 280,000 miles on it ..👍
I had isx 2250 with Volvo 13 sp best truck ever owned cause 485, 1850. I have decided runs Nor Cal to so cal if u been to Cali u no Grape vine it's steep hills. Avg 40-45mph with close to 79-80k if u gonna buy Cummins make sure replace camshaft after 500k Sohc u get best torque but less hp from Dd15 dohc more HP but Less Torque Trust me I've driven both Freightliner and volvo. By far Cummins been best choice for me
There's the problem with the dd15 you have to buy a Freightliner to get it and Freightliner is a garbage the Cummins x15 comes in Pete and Kenworth those trucks are better than a Freightliner so I guess I'll go with the Cummins
Actually Pete’s and kenworths are shit. Old school drivers like them because they think they’re better, but in reality our T680s are the most unreliable of the 3 brands we use the other is Freightliner and LT international w/ Cummins. I definitely like the international engine the best, it’s noticeably stronger and and sounds better, but the cascadias are like airbuses interiors. Way nicer. I’d buy a freightliner strictly for the interiors and prices & availability of parts and service center. Paccar aren’t as nice as you think.
Great video and a place to call if anyone had a question before purchasing their unit. But for me today’s ISX are disposable engine that will visit any repair shop ten times more then if you run a DD15. Maintenance is key and for maintenance you will need to go to repair shops but Detroit engines fails a whole lot less then today’s isx engines. Now before cummins was my number one go to engine but not after 2012 models came out.
New platforms usually have bugs to work out. The latest model engine seem to be doing a little better. Thanks for the feedback and yes maintenance is key.
We run Heavy Haul in Michigan. Our company was all Cat prior to Acert. After all that we switched to Cummins. We had good luck until the 2009 isx. Our company then switched to Detroit. Freightliners and Western Stars. My boss hated Cummins that bad until last year. We have 12 Dd16 that are garbage. Shitty mpg and lack of power. Needless to say we Got the New x15 565 and will stay that way. The Detroit’s were good until they hit 200k once they hit that mark they lived at the Dealer
Dd13 dd15 best in the world runs forever and if you have basic experience with mechanical work you can basically do 90% of the work on it theres parts everywhere and they cost less if your just starting off in trucking dd13 or dd15 frightliner is the way too go and if you own a fleet its also the way too go cuz of the price on parts
I remember the days when the driver understood his truck what it could do Now a days the office makes sure you need to sit in a truck and struggle thanks 👍
I have a ditroit 14. 60 with 1milion 175 thousan miles . I am the secon owner off this truck I get it's with 400 thousand miles on...change turbo cloche and radiador. I am happy with my truck. Freightliner Colombia 2006 .
The ISX is much more mechanic-friendly, the conventional front gear train gives a lot of space to work for air compressors and fuel pumps. The turbo is out in the open and almost all the fuel and coolant hoses are braided banjo vs plastic clip-connects. If you are wrenching on your own truck I would not even consider the DD15.
Weve had engine problems on 2 of our dd15s one at 800k and the other at 1mil miles. A big issue is drivers pressing the override button when the engine is trying to protect itself for low water or oil. On both trucks it was cracked liners that cause water to go into the oil
I own Volvo d12 at 950,000 I did overhaul now I will drive it until it blows up then I am getting Cascadia with DD15 and 10speed manual. You can keep your automatic I dont want it. I want to be in control of power
If it's not a 60 Series, don't buy a trash ass Detroit! Cummins ISX can be taken ANYWHERE for service or repairs. The junk DD13/15 can only go back to Freightliner. I'm driving on for a buddy right now. The original engine blew up, the used replacement engine blew up & had to be rebuilt. All of this in 18 months & it's been tuned to 550/1850. It still doesn't pull for shit. The Cummins goes all the way to 605/2050 & pulls like a freight train! Gimme the ISX any day of the week.
@@TATEXPRESSINC Nope, it was bone stock before it was rebuilt. These emission engines are throw aways. You can't give me a new Detroit! IF I buy a 2011+ truck, it'll only be a Cummins.
after reading the comments it seems like the experience between these two engines is all over the map. Some have good experiences and some have bad experiences. Many variables may be involved between owners and how often and what type of maintenance is done, how the rigs are being driven (if the driver is beating on it or not) what and where they are hauling, etc.. who knows.
If he's comparing the x15 to the dd15 I don't even think it's close..but if it's the the isx 08 tru 2016 then he's spot on..I personally think from all the research I've done on the x15 it's miles ahead
My truck (208 kw T800) has the ISX 485. The engine has 30,000 miles and is on its second turbo and fuel lift pump. That being said, it’s a powerhouse. I don’t have any trouble running Lookout Pass on I90 at the Idaho/Montana border at 63mph (darned governor) @75k gvw, with just a 10 speed. That being said, I’m looking at another truck with the DD15, so this video is a good comparison
I’ve had both engines. The DD15 is really smooth and quiet with great pickup. Any grade over 3-4% and a similar spec’d ISX will out pull the Detroit. The best motor I had was a 530hp ISX in a 2005 T2000, it would pull just about anything on a grade except a big Cat. I changed oil every 20k on all of them, and also added 1 gallon of 80-90 hypoid gear oil in the motor. In the mountains Cummins, on the plains Detroit.
I personally feel that the dd15 is the better engine due to the fact ive seen a lot of isx engines with blown turbo's, blown egr coolers and of course fuel pumps
Yep, i've watched 2 companies go bankrupt over ISX and X15 motors, blowing EGR coolers and Turbos, which usually resulted in total motor destruction for one reason or another. I'm and O/O now and run Volvo D13's
@@TATEXPRESSINC Love it, look at getting a second truck, with the new D13TC motor. I've had all other makes and engines, including the X15. I will only run the 2019+ D13's now. I'm also based in Western Canada, and do a lot in the mountain's/PACNW, and the D13 impresses me. In the US we run 80 000lbs gross, in Canada we run 102 000lbs gross.
I ran the DD15 for a number of years in company rigs, there was a lot of things I liked about the detroit's but there was a lot I didn't like either. Company has a yard full of blown up dd15's tho all rods through the block. I own my own truck now with a cummins ISX in it and has been happy with my 650hp 2150 tq for pulling 140,000lb fully loaded weight around. Plenty of guys i know personally with the cummins have actually NEVER been to the shop in 600k miles for def related issue's, some are getting close to the million mark with out a def problem. probably because of the weight we're pulling keeps everything hot. But with the DD15 I was lucky to make 3 weeks with out DEF issues. My truck's deleted so I don't have that problem.
Add arch oil to reduce wear nd tear then yu can probably make it to 1.5.. adding a keyworth with a n14 to the fleet next cnt wait to feel her. My mechanic just rebuilt the engine 🙃
We run Volvo’s d13 frightliner dd13. But I understand we are getting a few international with Cummins in then. Not to wild about that. Do like the Detroit.
Larry, on the late models the engineers seem to be working out the bugs. Yes, Detroits are solid engines. All depends on the maintenance. Thanks for watching and make sure to hit that sub button.
My friend have 4 trucks with Cummins ISX 15 and they are a real headache . All months trucks need to go shop. Specially for DEF and DPF system . I personally do not recommend Cummins isx they have a lot of fails like : injector tip , 7th injector ( dpf) , oil pan leaking every 200k miles , sensors fail , at 450k miles turbo goes bad . It happen exactly the same things to my friend’s truck . I prefer DD15 , Volvo D13 over Cummins ISX 15 Or go with new Cummins x15 they fix all nightmare with ISX15 .
I have a 2022 Cascadia. DD15. Brand new. Only 50 miles when I got it. Gets about 7.1mpg based on the 7k miles I’ve driven it so far. It’s pulling a flatbed where I’m more often than not, gross weight around 78k. I have 8 batteries, Freightliner calls it ParkSmart, in the truck instead of the usual 4. So I never have to idle the truck when I’m taking my 10hr. When I take a 34, I’ll keep the Park Smart running but it will usually need to be recharged before the 34 is up. So I’ll idle the truck for 3 hours a week at most. Just my brief experience owning a Cascadia.
Sadly we have 9 dd15s and 7 isx. 4 dd15s have piled up. The isx have needed maintenance. And they drag the Detroit trash up Messiter mountain alll day long. Cummins crest at 95-100 kmh Detroits maybe 80-85 ringing its neck and blowing every seal they have. Our hds get paid.....
one point you have wrong, is durability being why cummins are more costly. Its simply because Detroit is a Daimler company and they are incentivizing their engines in their trucks. Cummins will charge them more for a unit than they can produce their own for.
Ive had Cummins products more than anything else, but they were old school pre emission units. The ISX style engines gave me nothing but grief because of the emission controls. They are rough running units, sound like locomotives as they pull. I like the sound and feel....it proves that it's doing something. The DD15 feels soft despite having higher compression and turbo compounding, but i believe its all in the tuning. With the right tune the DD15 will out pull an ISX.
I’ve had 2015 isx engines , they all burned oil, needed dpfs cleaned at 120.000. Then 2016 dd15s, needed nothing more than oil changes up to 350 k , then needed dpf cleaned. Both engines were idled all the time. Used by OTR drivers idled every night. DD15 is way better. I dont know about the lastest isx 15 never had one
I have to stick with Cummins, I know how to work on them, know how to drive one and Cummins supplies everything to the owner that the shops supply to the mechanics in regards to manuals and parts. And the Cummins Inline 6 reader with the Insite software is readily available on pllaceds like eBay for around $250, if you own a Cummins, you need this diagnostic tool. The fuel pumps on the CM-2250 and newer are well known. They need to be rebuilt at 400,000 miles. Just a fact of life with these motors. And that includes the newest ones out here. Yes, they are big red crybabies, but once you understand what is going on under the hood, and drive and maintain it properly, they will go the distance. To do that, you need regular old school PM service routines, 10,000 to 18,000 miles depending on usage and conditions. Regular EGR Tuneups and do not lug the motor! That is the cause of the liners breaking loose, maintain 1500 rpm in pulls and when under a heavy load. Make sure the truck is geared properly for the application. You do not want to be running the mountains with 3:20 gearing when a 3:70 ratio would be more appropriate. Just me, but I like my Cummins.
Thanks for sharing the video. A friend who is a mechanic recently told me how bad the DD15 engine is and how he does not recommend that engine. They seem to be similar in many ways.
Ogkilla, yes it all depends on the history of maintenance. If a engine is not well maintained, then you will see a durability issue. I have seen good and bad across all engine platforms. Thank you for watching
Good day. I’m working on a 2012 KW with a isx15. Truck code keeps saying to service the Dpf and the Scr system I hard them both cleaned. Put all new temp sensors and out put Nox. Still saying the same and won’t regen. I’m leaning towards the ECM that controls it. There seems to be a lot of codes for the same issue. Pins and plugs look very good at the ECM. Do you think it could be the problem ? One code says the engine exhaust temp is -40 also. And I replaced it too. Nothing changed. Any thoughts would greatly be appreciated.
What is the difference between the Cummins ISX and X15 engines? Which one do you think is better? Just subscribed so looking forward to seeing what information you have to offer.
![เปิดใจ พี่ญา คนรุม หลังทัวร์ลง หนักสุดในชีวิต!! l [Nickynachat]](http://i.ytimg.com/vi/2-OJZRtclro/mqdefault.jpg)
I just hit 1mil miles on my DD15 got it with 300k never had big problems “knock on wood” lol I’ve done all work my self. Happy with the DD15.
ER1191, thanks for your input. All platforms can be a solid engine with good maintenance. 💪🏼🔧👊🏼🇺🇸
hi ER. what type of oil you use? any additives?
D K No sir never just Delvac oil as recommend, and to be honest don’t follow what I say but iv alway changed my oil my self at 35k miles.
@@ER_666_ I have been using chevron. It is also approved by Detroit.
@@ER_666_ damn bro that’s good as heck. I’m on my second dd15 first one went way over 1 mil until truck was involved in accident had to get another . Bought second one at 500k miles I’m at 880k with no major problems. Only problem with DD15 is the emissions BS. Deleted it........ Sike 😉
Historically I’ve been a Cummins fan, spent most of my career driving Cummins. In the past couple of years I found myself driving a DD15. Just recently I returned to a Cummins. In my opinion the ISX idles rougher an uses more fuel and produces more noise. Conversely the DD15 is smoother, quieter and uses less fuel. As far as pulling a hill I feel like they are both about even. If I were to choose I would now choose the Detroit. It is easier to live with and more economical. As a driver you spend a lot of time sitting right behind a huge motor, you might as well make it as comfortable as possible. As an added bit of information I’ve also driven Cats before they stopped putting their engines into trucks. They were great for low end grunt but I never really cared for them as a highway engine. DD15 has gobs of low end grunt but does really well as A highway engine. The ISX and Cummins in general is a good highway engine. The Detroit is the best of both, in my opinion.
Nah my Cummins noticeably stronger than dd15. Cummins sounds old school and I like it, DD15 sounds gay and european. I’ll take a newer freightliner over a Cummins any day but the engine ain’t better.
I just purchased a 2014 Cascadia with a DD15/13 speed. Got it from the original owner. He spec the truck for himself. $812k miles. Always serviced at freightliner. He’s retiring after 40 yrs on the road. At 70 years old. I bought this truck for a great price and it’s condition. But the main reason was that it’s a one owner truck. Owner operator spec and purchase. It has a couple of minor oil leaks and needs a few little things. But I’m happy with the buy. I looked at a 386 Pete with a rebuilt cat C15. It was good too but I was also looking at repair costs and parts availability out on the road. Pete and cat parts are expensive and hard to find sometimes.
STILL RUNNING MY TRUCK … 932K MILES
Good video. I have a 2010 & a 2012 Cascadia the 10 has 1,080,000 mile the 12 has 1.1 million. Maintenance on both is the same, cam box resealed, injectors and o rings on oil pickup tube. The dd15 is great.
Barry, thanks for the input. A good maintenance schedule is very important.
Did you have to rebuild them at all?
I'd like to see more of these comparison motor vids...Paccar, Volvo, etc. Maybe do auto and manual transmission compare also ?!?
west2401 I will do. Thanks for watching. 🇺🇸
🔧💪🏼👊🏼
And maybe a video disussing the pros and cons of purchasing a newer truck vs an older truck with an older, pre-emissions motor and having it rebuilt.
Thanks Adam for heads ups on these engines. Me myself I have a dd15 ... maintenance is the key
west2401
PACCAR🤮
@@jjgr661 lol
Hey. I'm from New Zealand. I have a 2017 freightliner argosy with a DD15 565hp 1850ft lbs. 535000kms. The DD15 motors aren't a favorite here in NZ. They may have similar power to a isx but get to pulling up a long big hill and the isx just powers away. But the DD15 does have a better jake brake.
Cummins is very powerful when it comes to climbing a Hill🗻.....
Could it be the transmission gearing and program? I just recently cam out of a '19 Freightliner Cascadia with the DD15 to a '22 KW T680 with the IMX. The Cascadia holds 12th gear for dear life for fuel efficiency, but sacrifice pulling power in the mountains. I can downshift early to stay in the powerband, but it won't do it automatically. At least the Freightliner Cascadia gets excellent MPGs. As for the KW T680, it does the opposite.
It all depends on a gear ratio and transmission as well. On my DD15 455 HP, I got eaton fuller 13 speed smart shift and 3.36 ratio. I'm ripping off most of the trucks on a hills even when fully loaded 80000 lbs. But also, I can go 75 mph at 1500 rpm.
Had two ISX15 2012/2014. Always in the shop with regen/sensor issues. Traded in for a pair of ishift D13 2.64 rear, difference is night and day. Lower fuel/DEF consumption, higher bottom line.
Aftertreatment systems can be a pain sometimes.
Sounds like you spec’d the first pair wrong for the application. Going down in displacement makes the engine work harder and keeps the aftertreatment hotter and happier. Apples and oranges unless you traded for DD15’s. Just my 2 cents.
N Bolin, thanks for the input. Be sure to subscribe. 👊🏼💪🏼🔧🇺🇸
@@nbolin7803 question, im buying a DD15 with 505HP. I think the dealer increased the HP. Is this an issue?
@@willmalloy4940 there is a high/low power setting in the ecm. If this is set to high then it is fine as it’s still running original parameters from Detroit. Be careful with deleted DD15/16. The delete place increases the fueling to “add power” as an up sell. I’ve seen big issues with fuel diluted lubrication causing liner failures on deleted engines.
I run a ISX 600 with 2050 tq and flat out eat 99.9% of the trucks out there from coast to coast weekly. We do heavy maintenance schedule oil at 10-12k and PM's always early. Just hit 800K and oil samples show minimal wear. We are hoping the three trucks will in our fleet will hit 1.5 mil each before inframes.
Twin, I appreciate your input. In the video I am talking about the ISX15
How did you get 600hp?
@@nunu6158 ISX cm2400 do offer 600hp stock,
I’m keeping my Series 60. You fellas can have the DD15 & ISX.
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Me too
I have 890,000km on my deleted isx running 720 hp tune. Runs great still. But in bc or places with lots of hill it guzzles the fuel
I fucked up selling mine dont do it
YUP!
Personally whatever motor you own its life will depend on maintenance and your Mechanic,got a dd15 swallowed a valve at 650k mls decided on an inframe 5mo later still mech bs me around getting another truck cant wait any longer
Great presentation. First time viewer and subscribed. I’m about to buy first truck to become O/O.
Very helpful! Thankful for the channel.👍🏾🙏🏾
Great job on video. I have a 8-71
Never had a problem with her it's in my 1971 truck...............
Everyone what for it..
But really just love the old Detroits, I allso own a 3-53
In a piece of equipment.
Thanks for sharing your experience. Be sure to subscribe.
Your right👍 maintenance is key.
I have owned the DD15 & had really good service from that engine. I now run a Cummins X15 & am having the same great service. I do oil changes at 20K & the biggest part, VERY LOW IDLE TIME, I mean less that 10%, if you can do that either engine will treat you well.
Thanks for watching. Maintenance is key and low idle times are very helpful. That is why there is a idle shut down programmed on truck.
I’m in Southern California going to run a 75 mile radius. Don’t ever idle even in summer. I’m looking to get a 2016 international 400 Cummins with 200,000 miles. Found one for 3500 down 998.00 a month. Hoping my set up works out in real life operations. Scared but going to move forward
From my experience driving different trucks over the last 5 years Detroits seem to run a little smoother under load. Every Cummins equipped truck I've driven shakes going uphill. I think a lot of their good reputation comes from the pre-dpf engines
5 years is not much though
@@kamtarbol five years is more than enough
If someone get in college in five years he’ll get phd and probably design your next motor
@@mintos2089 no
Haha their reputation comes from passing your slow ass up any and every hill. Dd15 are complete trash only one that maybe shakes a slight stick is a dd16 and thats iffy at best. Isx, x15 will allll drag your ass all day long and you never see them again
ISX is garbage......and I've had Cummins products. Chews up cams, VGT and emission control dramas, dropped liners
Very helpful I just purchased a Day cab Cascadia with the DD 15 700k so far so good
Thanks for watching. Be sure to subscribe
I’ve been waiting 9 months to get a truck so I can head to your shop. and guess what, I Drove all way from Vegas just to get an oil change! I’m excited.
Aways dd15 the best.
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Hola ,yo tuve un pete 387 con un Cummins isx y tuve una mala experiencia,ahora tengo un cascadia 2013 llevo un año con el y ha sido muy,pero muy buen camión,los dos son buenos,yo prefiero el Detroit,Gracias por compartir el video .Saludos desde Victorville California
We are in the same town that's awesome 👌
Great comparison between the two. Where I used to work we could get over a million miles on the Detroit.
Rusty Glovebox yes older Detroit’s were very durable and dependable engines. 🔧👊🏼🇺🇸💪🏼
Volume is too low, your close intro has a higher volume. The info on both engines is good and thank you for sharing!
It’s ur cheap Samsung 😝
I just put a Hold on A freightliner with a Cummins On and I’m Flying to go see it and your video give me a little bit more confidence
I drove both. One for Schneider one for western express. Just speaking from driver point of view I'll take the DD15 all day. Way more power and torque. My cummins feels sluggish. Smoother but way more sluggish. The DD15 was a monster in the mtns and just felt way more responsive and the jakes worked way better.
That has more to do with the power ratings on each engine, Cummins has low power and high power engines for trucks maybe you are comparing a 400 hp Cummins to a 500hp Detroit
I drive a cascadia with a DD15 , so far NO issues with engine , only time had an issue was the emmissions only two times had a check engine ligh on becuase of that , so far 280,000 miles on it ..👍
Great videos, thank you for not being biased or arrogant
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I had isx 2250 with Volvo 13 sp best truck ever owned cause 485, 1850. I have decided runs Nor Cal to so cal if u been to Cali u no Grape vine it's steep hills. Avg 40-45mph with close to 79-80k if u gonna buy Cummins make sure replace camshaft after 500k
Sohc u get best torque but less hp from
Dd15 dohc more HP but Less Torque
Trust me I've driven both Freightliner and volvo.
By far Cummins been best choice for me
There's the problem with the dd15 you have to buy a Freightliner to get it and Freightliner is a garbage the Cummins x15 comes in Pete and Kenworth those trucks are better than a Freightliner so I guess I'll go with the Cummins
Actually Pete’s and kenworths are shit. Old school drivers like them because they think they’re better, but in reality our T680s are the most unreliable of the 3 brands we use the other is Freightliner and LT international w/ Cummins. I definitely like the international engine the best, it’s noticeably stronger and and sounds better, but the cascadias are like airbuses interiors. Way nicer. I’d buy a freightliner strictly for the interiors and prices & availability of parts and service center. Paccar aren’t as nice as you think.
lol this comment was a pile of garbage.. Fuck paccar garbage
You can thank the Germans for that. They bought (and ruined) Detroit Diesel and they bought (and ruined) Freightliner, and ditto for Western Star.
Cat 15,13 3608, red top n 14. Detriot 60. All overhaul. 750 to million engines
Great video and a place to call if anyone had a question before purchasing their unit. But for me today’s ISX are disposable engine that will visit any repair shop ten times more then if you run a DD15. Maintenance is key and for maintenance you will need to go to repair shops but Detroit engines fails a whole lot less then today’s isx engines. Now before cummins was my number one go to engine but not after 2012 models came out.
New platforms usually have bugs to work out. The latest model engine seem to be doing a little better. Thanks for the feedback and yes maintenance is key.
@@TATEXPRESSINC Latest model engines starting at what year?
We run Heavy Haul in Michigan. Our company was all Cat prior to Acert. After all that we switched to Cummins. We had good luck until the 2009 isx. Our company then switched to Detroit. Freightliners and Western Stars. My boss hated Cummins that bad until last year. We have 12 Dd16 that are garbage. Shitty mpg and lack of power. Needless to say we Got the New x15 565 and will stay that way. The Detroit’s were good until they hit 200k once they hit that mark they lived at the Dealer
Dd13 dd15 best in the world runs forever and if you have basic experience with mechanical work you can basically do 90% of the work on it theres parts everywhere and they cost less if your just starting off in trucking dd13 or dd15 frightliner is the way too go and if you own a fleet its also the way too go cuz of the price on parts
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Thanks im about to get into a '19 freightliner dd15 with 400k miles. U think its good? Still got a factory warranty
Acá en Colombia hay pendientes bastante empinadas y Detroit no le sigue el paso al Cummins isx y en costos de reparación el dd 13 o 15 vale el doble
I remember the days when the driver understood his truck what it could do
Now a days the office makes sure you need to sit in a truck and struggle thanks 👍
I drive a deleted isx this thing is a beat powers through mountains no major repairs for a year since I’ve been driving just minor maintenance
Cm870?
I have a ditroit 14. 60 with 1milion 175 thousan miles . I am the secon owner off this truck I get it's with 400 thousand miles on...change turbo cloche and radiador. I am happy with my truck. Freightliner Colombia 2006 .
Parts availability is way better on a Cummins. Down time needs to be considered in that aspect especially in todays supply chain world
The ISX is much more mechanic-friendly, the conventional front gear train gives a lot of space to work for air compressors and fuel pumps. The turbo is out in the open and almost all the fuel and coolant hoses are braided banjo vs plastic clip-connects. If you are wrenching on your own truck I would not even consider the DD15.
Thanks for sharing
This a great comment 👍
I 100% agree
I have a dd15 deleted, that thing is a beast. Best engine, very reliable. I will buy another DD15 and have it deleted as well.
Is it still holding up well for you (since deletion)?
Driving truck is not for speeding, Best thing as fleet owner is maintenace and emission cost. Thank you for good info.
Weve had engine problems on 2 of our dd15s one at 800k and the other at 1mil miles. A big issue is drivers pressing the override button when the engine is trying to protect itself for low water or oil. On both trucks it was cracked liners that cause water to go into the oil
Sounds like driver problems not engine problems
FWIW anecdotally I have seen a lot of comments from DD15 users that oil issues can arise. That is the biggest knock I've seen on this engine.
I own Volvo d12 at 950,000 I did overhaul now I will drive it until it blows up then I am getting Cascadia with DD15 and 10speed manual. You can keep your automatic I dont want it. I want to be in control of power
If it's not a 60 Series, don't buy a trash ass Detroit! Cummins ISX can be taken ANYWHERE for service or repairs. The junk DD13/15 can only go back to Freightliner. I'm driving on for a buddy right now. The original engine blew up, the used replacement engine blew up & had to be rebuilt. All of this in 18 months & it's been tuned to 550/1850. It still doesn't pull for shit. The Cummins goes all the way to 605/2050 & pulls like a freight train! Gimme the ISX any day of the week.
George, thanks for watching and appreciate your input. Was the tune used on both DD15 engines before failure?
@@TATEXPRESSINC Nope, it was bone stock before it was rebuilt. These emission engines are throw aways. You can't give me a new Detroit! IF I buy a 2011+ truck, it'll only be a Cummins.
after reading the comments it seems like the experience between these two engines is all over the map. Some have good experiences and some have bad experiences. Many variables may be involved between owners and how often and what type of maintenance is done, how the rigs are being driven (if the driver is beating on it or not) what and where they are hauling, etc.. who knows.
A good maintenance schedule will help.
If he's comparing the x15 to the dd15 I don't even think it's close..but if it's the the isx 08 tru 2016 then he's spot on..I personally think from all the research I've done on the x15 it's miles ahead
We Bought ur old location ! One on Wilmer tx finn road ! Heard a lot of good review about tat keep it up! Take care !
My truck (208 kw T800) has the ISX 485. The engine has 30,000 miles and is on its second turbo and fuel lift pump. That being said, it’s a powerhouse. I don’t have any trouble running Lookout Pass on I90 at the Idaho/Montana border at 63mph (darned governor) @75k gvw, with just a 10 speed. That being said, I’m looking at another truck with the DD15, so this video is a good comparison
I’ve had both engines. The DD15 is really smooth and quiet with great pickup. Any grade over 3-4% and a similar spec’d ISX will out pull the Detroit. The best motor I had was a 530hp ISX in a 2005 T2000, it would pull just about anything on a grade except a big Cat. I changed oil every 20k on all of them, and also added 1 gallon of 80-90 hypoid gear oil in the motor. In the mountains Cummins, on the plains Detroit.
Cat pulls the best
Detroit is the least thirsty
Cummins does booth good
Ur doing a great service to humanity
I personally feel that the dd15 is the better engine due to the fact ive seen a lot of isx engines with blown turbo's, blown egr coolers and of course fuel pumps
We have seen good ISX15 and DD15. A good maintenance schedule is key.
Thanks for watching. Be sure to hit the sub button.
Thanks for the input. 💪🏼🔧👊🏼
Yep, i've watched 2 companies go bankrupt over ISX and X15 motors, blowing EGR coolers and Turbos, which usually resulted in total motor destruction for one reason or another. I'm and O/O now and run Volvo D13's
Dues, how are you liking your Volvo D13
@@TATEXPRESSINC Love it, look at getting a second truck, with the new D13TC motor. I've had all other makes and engines, including the X15. I will only run the 2019+ D13's now. I'm also based in Western Canada, and do a lot in the mountain's/PACNW, and the D13 impresses me. In the US we run 80 000lbs gross, in Canada we run 102 000lbs gross.
I have the dd16 in my 4900 and it’s been over all a great motor
"Be sure to hit the sub button" is a bit redundant in the comments. We get it. Great vid.
As guy that has been workin on freightliner for only 2 mos, all I see is oil pan gasket after oil gasket being replaced.
Tthanks for your input Tyrone, be sure to subscribe.
Great video. I hope my series 60 lasts forever...lol. But I would prefer dd15 if forced to choose.
DIY SEMI thanks for watching. The 60 series is a solid engine. 🔧🇨🇱🇺🇸👊🏼💪🏼
Keep rebuilding the 60, Long live the series 60! Mine is on its 2nd overhaul
7msupralex thats a good idea. 🔧🇨🇱🇺🇸💪🏼👊🏼
I ran the DD15 for a number of years in company rigs, there was a lot of things I liked about the detroit's but there was a lot I didn't like either. Company has a yard full of blown up dd15's tho all rods through the block. I own my own truck now with a cummins ISX in it and has been happy with my 650hp 2150 tq for pulling 140,000lb fully loaded weight around. Plenty of guys i know personally with the cummins have actually NEVER been to the shop in 600k miles for def related issue's, some are getting close to the million mark with out a def problem. probably because of the weight we're pulling keeps everything hot. But with the DD15 I was lucky to make 3 weeks with out DEF issues. My truck's deleted so I don't have that problem.
Troy, thanks for the input. You may be right about truck running hotter temps could be reason for no faults. Make sure to hit that sub button.
Add arch oil to reduce wear nd tear then yu can probably make it to 1.5.. adding a keyworth with a n14 to the fleet next cnt wait to feel her. My mechanic just rebuilt the engine 🙃
We run Volvo’s d13 frightliner dd13. But I understand we are getting a few international with Cummins in then. Not to wild about that. Do like the Detroit.
Larry, on the late models the engineers seem to be working out the bugs. Yes, Detroits are solid engines. All depends on the maintenance. Thanks for watching and make sure to hit that sub button.
Turn up your volume
I have a 2013 cascadia with a DD15 and it has never failed me. I’m about to buy a 2017 kenworth T680 with a cummins isx 15 so wish me luck lol
My friend have 4 trucks with Cummins ISX 15 and they are a real headache . All months trucks need to go shop. Specially for DEF and DPF system . I personally do not recommend Cummins isx they have a lot of fails like : injector tip , 7th injector ( dpf) , oil pan leaking every 200k miles , sensors fail , at 450k miles turbo goes bad . It happen exactly the same things to my friend’s truck .
I prefer DD15 , Volvo D13 over Cummins ISX 15
Or go with new Cummins x15 they fix all nightmare with ISX15 .
After working on trucks for 12 years and now running a c15 CAT; I wouldn’t even think about running a dd15. Cummins walks all over them all day long
I have a 2022 Cascadia. DD15. Brand new. Only 50 miles when I got it. Gets about 7.1mpg based on the 7k miles I’ve driven it so far. It’s pulling a flatbed where I’m more often than not, gross weight around 78k.
I have 8 batteries, Freightliner calls it ParkSmart, in the truck instead of the usual 4. So I never have to idle the truck when I’m taking my 10hr. When I take a 34, I’ll keep the Park Smart running but it will usually need to be recharged before the 34 is up. So I’ll idle the truck for 3 hours a week at most.
Just my brief experience owning a Cascadia.
Brother I am following ur video and very respect ur informations because u had experience for repairing thank u A lot
Lol I'm still running my 3406 425 b model cat. 1,349,000 miles. Keep your Cummins and detroits.
It’s worth mentioning the doc/scr in a Detroit can even up costing around 20k.
Thanks for your input. Be sure to subscribe
I've seen more trucks with the hood open with a Cummins than a Detroit
That's not only because of the engine. Radiator goes bad too
It’s because there’s a million more isx’s
Fleet guys are abusing basically anything they touch
Solid Info bro!
We are looking at taking an ISX for a somewhat good deal. AS long as they are dependable motors, I think I'll bite.
Tengo un freightliner Cascadia 2014 Cummins isx tengo un 545 68 diagnóstico 1 spn 171 deful 5 what the problem?
Sadly we have 9 dd15s and 7 isx. 4 dd15s have piled up. The isx have needed maintenance. And they drag the Detroit trash up Messiter mountain alll day long. Cummins crest at 95-100 kmh Detroits maybe 80-85 ringing its neck and blowing every seal they have. Our hds get paid.....
ISX has issues with Crank Shaft. DD15 has higher after treatment replacement cost due to one box parts are all one.
I've have both DD15 is by far better in mi opinion.
Great video brother i going to open a shop here in SoCal very soon
one point you have wrong, is durability being why cummins are more costly. Its simply because Detroit is a Daimler company and they are incentivizing their engines in their trucks. Cummins will charge them more for a unit than they can produce their own for.
Ok there is your answer
About maintenance
Or better no maintenance..
4:40 talking about
The dpf filter...
Thanks for watching
I got a dd15 and I do oil change every 10K miles
Thanks for your input
Ive had Cummins products more than anything else, but they were old school pre emission units. The ISX style engines gave me nothing but grief because of the emission controls. They are rough running units, sound like locomotives as they pull. I like the sound and feel....it proves that it's doing something.
The DD15 feels soft despite having higher compression and turbo compounding, but i believe its all in the tuning. With the right tune the DD15 will out pull an ISX.
I’ve had 2015 isx engines , they all burned oil, needed dpfs cleaned at 120.000. Then 2016 dd15s, needed nothing more than oil changes up to 350 k , then needed dpf cleaned. Both engines were idled all the time. Used by OTR drivers idled every night. DD15 is way better. I dont know about the lastest isx 15 never had one
Thank you for sharing your input. Be sure to subscribe to our channel.
ISX any day of the year
I love your sharing your value experty. Would you please advise me which engine DD15 compare to IX15 which one save more gas? Thanks
Eyeing the TAT for that exact eyeballin that you say.
They aint got no oil change records or so..
Be sure to subscribe. 🔧👊🏼💪🏼
I’m looking into purchasing a 2010 kenworth t800 it has a Cummins isx. What are your thoughts on the isx? Is it a good motor?
I like the Detroit, people over torque the drain plug on oil pan that crates problems.
Detroit is less expensive to maintain and more reliable than Cummins.
@@TATEXPRESSINCyou just said cummins was more reliable in the video
Cummins 600 for me!
David, thanks for the feedback. We will get more Cummins videos out.
How is an overhaul + labor for a DD15 cheaper than a fuel pump + labor for an isx
heard the DD15 series 60. isn’t a bad choice engine for starters
What do you recommend to look for in buying one. ☝️
Hands.down Detroit DD engines are reliable still perfer Cummins bcuz the ease of maintenance.
I rebuilt 3 DD15 and 2 DD13 motors this year snd all less then 600k miles
Not a fan of the motors
I work on both i perfer the DD15
Mike, thanks for the input. Be sure hit that subscribe button.
Did that long ago lol keep up the good work 👍🏼
Thanks Mike
A few mechanics I know prefer to service trucks at 30,000kmp
I have to stick with Cummins, I know how to work on them, know how to drive one and Cummins supplies everything to the owner that the shops supply to the mechanics in regards to manuals and parts. And the Cummins Inline 6 reader with the Insite software is readily available on pllaceds like eBay for around $250, if you own a Cummins, you need this diagnostic tool.
The fuel pumps on the CM-2250 and newer are well known. They need to be rebuilt at 400,000 miles. Just a fact of life with these motors. And that includes the newest ones out here.
Yes, they are big red crybabies, but once you understand what is going on under the hood, and drive and maintain it properly, they will go the distance. To do that, you need regular old school PM service routines, 10,000 to 18,000 miles depending on usage and conditions. Regular EGR Tuneups and do not lug the motor! That is the cause of the liners breaking loose, maintain 1500 rpm in pulls and when under a heavy load.
Make sure the truck is geared properly for the application. You do not want to be running the mountains with 3:20 gearing when a 3:70 ratio would be more appropriate.
Just me, but I like my Cummins.
Cummins isx, even w def are very reliable at least from my experience
How to spot when an engine had frequent preventive maintenance? Is the evidence only through paperwork?
How do u figure the ISX has a single over head cam when the side of the motor says dohc?
That's what I just asked him because I had a volvo with dohc
2010 came with a single overhead cam with the high pressure common rail fuel system .
Thanks . Have they made any changes in 2017 or 2018, thanks again for your help.
Jarbir, they have made changes on ISX15. Check out my video on most common issues on a ISX15
Looks like I'm a freightliner guy now?
Thanks for sharing the video. A friend who is a mechanic recently told me how bad the DD15 engine is and how he does not recommend that engine. They seem to be similar in many ways.
🤣 My mechanic told me not to buy anything else but a D-troit
then some say to only buy pacar and others to only buy cummins .. it's all the same 💩
You are making great videos for trucking, just wondering does Cummins x15 come with the coolant filter?
Mine does
Mine also. It’s on the passenger side of the motor!
Isn't the x15 better than the isx
30 k oil change lol...i do mine at 12k..1.2 mil miles no overhaul and still running ..DD15 for life..
Tha is for your input. Be sure to subscribe
What major repairs have you done?
That's crazy, my truck hit over 12000 miles in 3 weeks. Oil change every 40k no issue so far.
Good video, however I don’t agree with you that the ISX is more Durable than the DD15.
Ogkilla, yes it all depends on the history of maintenance. If a engine is not well maintained, then you will see a durability issue. I have seen good and bad across all engine platforms. Thank you for watching
@@TATEXPRESSINC I would suggest there are some design flaws in the ISX.
Good day. I’m working on a 2012 KW with a isx15. Truck code keeps saying to service the Dpf and the Scr system I hard them both cleaned. Put all new temp sensors and out put Nox. Still saying the same and won’t regen. I’m leaning towards the ECM that controls it. There seems to be a lot of codes for the same issue. Pins and plugs look very good at the ECM. Do you think it could be the problem ? One code says the engine exhaust temp is -40 also. And I replaced it too. Nothing changed. Any thoughts would greatly be appreciated.
How to remove stripped star bolt head. Sockets slipping
I’m thinking to get Cascadia and there are two options: with DD15 and ISX15. Is new cascadia with Cummins15 engine 450 hp, 2.85 ratio - good deal ?
What is the difference between the Cummins ISX and X15 engines? Which one do you think is better? Just subscribed so looking forward to seeing what information you have to offer.
If you were buying your own truck and you were choosing between the isx15 and the dd15 which one you choose for yourself and why?
It depends on a lot of variables. How many miles, what year, what kind of maintenance history and asking price.