Chevy 2500 6.6L GAS Engine (L8T) **HEAVY MECHANIC Review** | How DOES IT TOW??
ฝัง
- เผยแพร่เมื่อ 2 ก.ค. 2024
- I Review a Chevy 2500 HD with the 6.6L GAS L8T v8 engine as a Heavy Duty mechanic. I discuss the advantages of the new 6.6L gas engine from GM and then compare this engine to the F250 super duty 7.3L Godzilla engine when it comes to towing ability . Finally I give my conclusion as a mechanic whether or not the 6.6L L8T is a good towing engine.
F-250 superduty 7.3L Towing review -
What I Use:
Engine Oil - amzn.to/3sVnAoX
Engine Oil Filter - amzn.to/44Vk3nG
Engine Air Filter - amzn.to/3JMmMVV
Cabin Air Filter - amzn.to/3JMZAHh
Gear Oil - amzn.to/3PoIcxa
Penetrating fluid - amzn.to/3EOclkx
Rust protection - amzn.to/3Zo0Rh6
Towing Gear:
10 ton Pintle hitch (2.5" receiver) - amzn.to/3r7Axvm
7 Ton Adjustable hitch (2" receiver) - amzn.to/46i2iAf
Adjustable Pintle hitch mount (2.5" receiver) - amzn.to/3RqHGS3
15 Ton Pintle hitch - amzn.to/45SaCqv
10,000lbs Tie Down Straps - amzn.to/3ZBnxeh
My Camera Gear:
Go Pro Hero 10 - amzn.to/3ObZdJJ
Go Pro Hero 8 - amzn.to/36grzkM
Go Pro Accessories - amzn.to/3JLhlXo
Sony A6400 - amzn.to/3vkqzob
I like how simple GM kept this engine. it's really nothing fancy and is just a push rod v8. I like that GM has extended the stroke of this LT engine giving the 6.6L gas an easier time producing torque and producing it much sooner in the rpm band which is exactly what you want out of a work truck. this added stroke is great when we talk about towing and definitely helped this truck and engine when pulling my 14,000lbs trailer.
right off the bat this trucks comes with a 6 speed transmission and it showed it's weakness when towing and pulling hills on my towing course. it did not allow the truck to drop into higher RPM's to really keep those wheels turning and this resulted in the truck dropping speed.
the 7.3L engine in the F-250's on the other hand with the 10 speed tranmission just seem to have a better ability to keep speeds going up hills at speed without loosing speed.
the 6.6L l8t gas engine has some good power in it and will serve many people just fine but when it comes purely to towing performance the engine just didn't match up to the 7.3L godzilla.
but in terms of reliable and longetivity this is where the 6.6L gas engine shines. a major advantage of this engine is that is does have active fuel management or dynamic fuel management (AFM/DFM) and this is going to make these engine pretty strong units.
GM when back to the drawing board and build a tried and true simple V8 engine that has been proven to be strong, powerful and take abuse. so this engine as work engine is a perfect unit.
people have alot complained about the poor fuel economy of this engine and I have to say when towing it was actually pretty efficient, which I was not expecting. the MPG's where much higher then the 7.3 from ford so it does seem to be more efficient when towing.
Anyways Guys I hoped you liked the video!
00:00 - Intro
00:57 - Trailer Set Up
01:28 - Engine Specs
02:17 - Max Towing specs
02:39 - Max Payload/Truck Squat
03:55 - Acceleration Test 38-70MPH
04:59 - Driveline Specs
06:04 - First Hill Pull
07:04 - Acceleration vs 7.3L Godzilla
07:40 - Towing Fuel economy (mpg)
08:03 - Transmission Temp when towing
09:40 - Engine Braking
12:04 - Engine Advantages and Strengths
14:44 - Second Acceleration Test
15:25 - Multiple Hill Pulls
20:17 - Final Fuel Economy
20:58 - Conclusion - ยานยนต์และพาหนะ
Would like to see this again I believe the 6.6gas gets the 10 speed for 2024
You and I both! My truck guy says the 2024 chev's should be in soon!
Yep. TFL just did a tow loop with the 10 speed
@@TheGettyAdventures they have been available in the states for a few months and from what i can tell they didn’t do anything engine related, just added the 10spd…too bad we can’t have the 4.10s back…my 6.6/6spd needs 4.10s…
When GM Did the redesign and drop the 410 option and added a 3.42 option I knew things were going the wrong way especially when they keep going to taller and taller tires. General motors is basically saying if you wanna pull north of 12 k with a gas engine, don’t buy ours . I may be nitpicking here, but it’s not fair to even talk about fuel economy when the truck isnt keeping up with the other truck The only way to compare them is to have the faster truck ollow the slower truck Because it takes horsepower for the 7.3 to go up the hills 5 to 7 miles an hour faster. This thing may be good on fuel in part because the cruise control does not follow the speed very well in the Transmission stays too high of a year. same thing happened last year on the other toe channel. They tried comparing the fuel economy or something that made it up in 8 1/2 minutes to something that made it up at 11 1/2 you cannot compare the two. This was a good test I’d really like to see something more suitable for the heavier trucks while the load you used was fine for the half tons. How about a big fifth wheel with a large frontal area something realistic? No one pulls low loads like yours they’re not that common. Personal use of those trucks is mostly for RVs, I think this truck would suffer even more with a big fifth wheel same amount of weight, of course, The lack of power and poor gear choices would be very apparent since the air pushing characteristics of the RV put more of a strain on the tow vehicle.
It’s about time!
These Chevys have a face only a mother could love 😂
😆🤣
I’m not a fan of any gm product..that being said towing is not a race. Iv got 2 million miles of experience doing it. It’s about being able to do it every time as efficiently as possible. Semi trucks lose speed on every large hill but they do it for millions of miles a year. Anyone who thinks towing is a race or pulls at 80 mph just shows me they have little experience.
You are 1000% correct. It always gets me about these "reviews" where they're trying see how fast they can go when towing. How about thinking of being safe instead..
Always great to hear a mechanic's opinion :) love your energy!
I love your energy!
I traded my 2020 7.3 for a 2023 6.6 and i tow daily. Not 14k but 7-10k and so far I've put 35k miles on the 6.6 and it's an insanely reliable engine. Besides regular service I've never been in the shop. At 35k my 7.3 had been to the dealership 3x. The 7.3 is definitely faster getting to 60mph.. if that's something you're concerned about in a 1ton work truck. Me, i want reliability. I want to trade my truck with 300k miles on it.
do you have 6.6 gas?
@@ruslankolosok6899 yes
Yes @@ruslankolosok6899
I have a truck just like this and tow a 11k lb travel trailer. I notice the same thing when towing with cruise control. I think partially this is due to how gm programs their cruise thresholds, not just engine braking. My wife has an expedition max and suburban prior to that and i immediately noticed the ford likes to stay near the cruise control speed as much as possible even at the sacrifice of smoothness, whereas the suburban would go up and down in speed however it was much softer/smoother cruise control management.
Like the towing videos and comparison for sure!! keep up the good work
Ya I agree it seems like it was a programing thing but it just seemed to make the engine work harder then. Either way the 6.6L pulled that trailer without issue. But thank you sir
I'm sure it's easier on parts too
I can't wait to start seeing these things with Whipples on 'em!
We have a 2021 and a 2024 at work both crew cab long bed 4wd 1 ton with very heavy service bodies. They both pull 10,000 ish pounds trailer all day. Biggest difference so far is how smooth shifting the trans is and a marginal gain in fuel economy. Almost no mountains near us so neither struggle too much power wise. The 2021 has almost 150k miles on it at this point and couldn’t be happier with both
I think it wil be very interesting to see how the 10 speed 6.6L stacks up and to see how much of a difference it makes.
Both are gas?
Transmission programming.......
Good review as always. I agree with your conclusion
Thank you sir!
Love all your videos , nicely edited and very clean. I really need your help with one question: i really Dont tow anything,i just like the look of the heavy duty trucks. I am torn between a gmc sierra 2500 SLT Gasser , and a 2023 Ram Rebel Diesel ( they are knocking off $11k at a dealer near me) Ride quality is very important to me. I currently own a 1500 Chevy Silverado LTZ with the baby diesel engine. Thanks for your time-vic
Have you tried the 2024 with the 10 speed? Your reviews are great!
Nice video. I think you kind of seen that most of the “complaints” are not warranted when it comes to the 6.6 engine. It makes a lot of power and is very comparable on torque with the 7.3. The 6.6 makes 400 foot pounds from just below 2000 rpm all the way to about 5500 rpm.
Fuel mileage is great for these trucks too. They are pretty similar to the Duramax. Within 2 mpg or less usually.
The biggest draw back is the 6 speed. I say that owning one for what it’s worth (2022 with now 33,000 miles). The transmission needs/needed another gear between 2nd and 3rd gear. 2nd gears top speed is about 64 mph. 3rd gear is about 96-97 mph. That’s a big gap. The 10 speed will absolutely fix this. And in my opinion that was the biggest difference in performance for your test.
As far as grade braking goes, using cruise control is not the best way to go about it. It was a fair test since you did both trucks the same but from my experience using your brakes with the 6.6 and 6 speed and it will very quickly downshift.
In my opinion the 6.6 is the best gas engine on the market by a wide margin. Especially now with the 10 speed but even with the 6 speed. Once you learn the “quirks” of how it operates it becomes mostly a non issue. The engine itself has went off pretty much without a hitch. The same can’t be said about the 7.3 and they both debuted at the same time. So fair comparison for both. If anything it’s even worse for the 7.3 considering it’s an optional engine and the 6.6 is GMs standard. So every gas GM HD is a 6.6 but the same is not true for Ford.
And I would be willing to bet most of your complaints will be solved once you drive the 10 speed. Because from the way I took your review, your complaints were with the transmission shifting/tuning and not the engine itself.
I think the reliability is certainly there with this 6.6L aside from some engines burning oil but with the 10 speed I think this 6.6L will shine. Im super excited to redo this towing run with the 2024 and the 10 speed
@@TheGettyAdventures I’ll be looking forward to it.
You’ve kind nailed it! Every other person who I’ve spoken to, including my dad who’s truck it is, loves their 6.6 gas. Only complaint is under heavy towing it would be nice to have the 10 speed. One possible positive for the 6 speed it replacement cost/repair ability. The 6 speed
(6L90-E) has been around for almost 20 years including the 6L80 it’s little brother. It’s a well known dependable transmission that is, from taking to our mechanic, very easy to repair and replace. If you had to compare the 6 speed and the 10 speed for replacement cost he quoted more than double for the 10 speed. Just a thought, if you don’t need the extra gear then it’s not really necessary. For us the 6 was fine. We only pull 10-12k and really a 1/2 ton could pull our race trailer, in terms of weight, but we really needed the stability associated with a 3/4 ton.
In short we love our 6.6 gas.
@@kcspeed9980 the 6 speed is a good transmission and it does a good job. It’s tuning along with the throttle tuning in general is a little odd and that’s where all the 6.6 gas “online” hate comes from. And it’s almost exclusively online because in the real world everyone loves them.
But anyways, the 6 speed wants to lug the engine at all times and it wants to get into 6th gear as soon as possible. Some of that is throttle positioning tuning too though. It’s almost lazy in it’s operation. However, you put your foot in the throttle and it’s a different story. This happened in his video too.
The power is there even with the 6 speed but the 10 speed will be a better performer. Again I’ve got one and I’ve had it for nearly 2 years and just over 33,000 miles. I pull my 8.5’x24’ enclosed trailer. It does a really good job.
@@matthewanderson9912 One trick I’ve used to “help” with the transmission/throttle tuning is to use “off-road mode. It’s not that aggressive of a change but I think it’s better. Also we have 13k on ours and just about 1 year on it. Our trailer is also a 8.5’x24’ enclosed car trailer. Pulls it like a champ, wind sway is our only issue and if the weight distribution is off. Other than that it’s great. Way more pulling power than we need. What kind of fuel economy do you get? We get 16 highway 12 city, NYC so horrible traffic, and 9 towing, we have a lead foot and need to fix that.
The 6.6 certainly was no replacement for the 8.2L, the Ford 7.3L seems to have taken that crown. King of the big blocks. In this video the 6.6 did seem slow with the six speed, hope the 10 speed is much better. Greetings from North Carolina. Have a great week.
The 6.6 has 60 hp and bit more torque than the 8.1. The ten speed 6.6 runs circles around an 8.1
@@Billybob50119 the 8.1 is a much more capable engine if paired with a ten speed. The 6.6 on paper may make more in the peaks but nothing like the 8.1 under the curve
7.3 isn't a big block either
10 speed should make a nice difference I think
BIG difference with the 10 speed. I love mine. That 6 speed would always upshift and let the engine bog down. The 10 speed keeps the rpms stay where they need to be for the load.
Seems like when left on cruise control the transmission was mapped for efficiency going up the hills. It allowed some speed loss but in return, the fuel economy was better. I guess if you had a giant fleet of these people going 10 km an hour slower up the hill is worth the fuel savings.
Like the others said... get a 10 speed one and do this again. I bet it'll be better. Good stuff though.
A perfect baseline for the 10 speed, I wanted to get a tow run into with the 6 speed before the 2024's came in.
A good friend of mine is a Ford dealer mechanic and he has warned me to stay away from the 7.3. He has put several camshafts in them at very low mileages. He says the camshafts are soft steel. I know the 8 and 10 speeds have better performance numbers but it seems like every time I drive one more than a month or so I get tired of all the constant shifting. I am a dealer so I drive about everything. Also, I like to manually shift all these trucks when I'm pulling heavy. I'm not sure why any of these people that do reviews don't use the truck that way. They just put the cruise on or put it on the floor and call it a day. I know the TFL guys brag on how fast the ford 6.2 went up the hill. It was sitting at like 5500 rpm the entire way. I would say people that are hauling a camper with the kids would accept the minute or so less time it takes to get to the top to not have to listen to that the entire way.
Would be nice to see you review some of the heavy duty trucks from the 90’s. Imo I feel like they are some of the best built and reliable trucks out there. It honestly blows my mind why we can’t have a simple engine and a manual transmission anymore. I know in Japan and Middle East they still make simple trucks that are meant for work and cost between $20k low end to $40k high end. Anything over $40k for a work truck just seems ridiculous.
I would like to see you review some of the first gen Cummins and also the GMT400’s
Im sure manufacturers would love to offer something extremely basic
Two reasons
The market doesn’t support that type of vehicle anymore, evreyone on the internet will rip it apart.
And emissions, No simple diesel will ever come out again, for the American market.
While I agree it would be cool to see I think a lot of people would be very shocked at how poorly those older trucks perform as compared to the new trucks. A 90s diesel would lose in every measurable performance metric compared to these new gas trucks. And the gas trucks from the same era would be light years behind.
I’m a Chevy guy but the fact is a 1990s 2500 Silverado with a 454 and 4 speed auto wouldn’t have been able to maintain his speed in this test. It wouldn’t have been close. It mostly would have been due to the 4 speed auto but being down over 100 hp wouldn’t help things either.
I would find it really interesting to do something like that tbh. Maybe down the line I can set something up
I would like to see one of the F250s with a 6.2. 4.30 gearing .. I think it would be right there with the 7.3
You really need to test the 6.6 with the Allison ten speed. This six speed tests is old news.
Will you be doing a towing test with the LZ0 3.0 duramax?
Having a 2022 Gmc Sierra 2500HD for a work truck, a big upgrade over the older 6.0 Liter..
Massive upgrade over the 6.0!! No doubt about that.
@ 0:05 ... only took 5 sec n that clip to know baby isn't gonna last lol ... exposure and mud slide aside, I still like this truck ... just shooting this out there but I know a lot of contractors do cross shop HD truck vs Van ... maybe do a cross between em and see how they stack up for towing / payload and what can actually fit ... and how easy it's actually to maintain one vs the other ... don't believe I seen a channel offering this before and it be kool to see
The ten speed transmission in these trucks made a huge difference. I wish chevy would offer lower gears other than 3:73s too.
The 10 speed will be really cool to test out! And I agree it would be cool to see a 4:10 gear as an option
Keeping the engine in its power band isn’t a function of how many gears, it’s how the transmission shifts. There’s so much more to this than meets the eye. Don’t get caught up in any particular make. The 7.3 is a 2k option last I checked. Regear the gm if you don’t want a ford. What’s the price difference as these trucks sit? A lot I’m guessing. Plowing snow? Take the ford for its straight axle. Driving 80 on the expressway take the GM. The UAW and the EPA will prevent anything from being a great vehicle for the personal owner. If your a business and qualify for fleet discounts and you sell off after 5 years then your in the sweet spot for the engineering intent of these trucks. Make it last 5-7 years don’t blow a trans or engine till after the warranty. Ex automotive designer here and there’s no perfect truck. I’ve driven and studied them all. They all suck. Pick YOUR least suck.
Commenting on the video for the algorithm
you sir understand the game!
I think you're just seeing the programming intended to keep the trans cool and mileage good rather than keep the speed at an exact mph.
I would agree, but it just seemed to put more stress on the engine trying to regain speed already on the grade.
My 2024 6.6 Gas is paired with the Allison 10 Speed and has a 18,500 lbs. tow rating. Weird that you're reviewing a 6 speed truck when they are now 10 speeds.
I wonder how the Ford 6.8 10 speed would do compared to the new Chevy 6.6 10 speed. I am guessing that would be close.
GM seems to always be lazy to downshift. I had an 2500HD with the 6.0 and 6 speed transmission. I really did love the truck, especially the way that it was so reliable. We pulled our 10k fifth wheel with very little issues. I just hated the way that the 6 speed would not downshift and keep speed. Then comes a Blackbear custom tune, and that made a difference. I saw that the transmission would shift faster and keep the 6.0 in the power band more effectively. I hope they tune the new 10 speed to downshift quicker, I’m sure it would be a better tow rig. Funny thing is, I had to downsize trucks and went to a Colorado zr2. Ironically that 8 speed with the 3.6 down shifts very quickly and stays right in the powerband. If I need to go back to a 3/4 ton I the future,I would def get the 10 speed and 4.30 gears if it was offered.
My similiar truck drove me insane with 4.10's, 1st gear was WAY too short
Blackbear actually spec'd me a tune that locked 1st out and only enabled it in tow/haul, made a big difference
I think it will be very interesting to see how the 10 speed in the 6.6 stacks up because those lazy downshifts were just causing the engine to work so much harder to regain speed halfway up the hill
These comparisons are always a bit odd to me. Theyre not very "real world".
Typically when towing, especially going downhill, you would select the right gear manually, letting engine braking slow you down rather than your brakes.
Also, i dont believe GM built the 6.6 gas engine to replace the 8.1 or to complete with the 7.3. It was to create an improvement upon the 6.0 it replaced, and to offer a good option for those that dont need the power of a Duramax. Nor the cost.
6.6 gas is perfect for those that need more tow capacity than a half ton, but dont need to tow a house.
Its also great for those that dont tow at all, but need to haul heavy stuff in the bed more economically.
I would rather the cruise control allow the speed to fall off 5 mph on a hill rather than immediately downshift as soon as you’ll lose 1 mph.
I totally agree with that!
I mean I guess it makes for a smoother ride but it also makes the engine work so much harder trying to regain speed while climbing a hill rather then just maintaining it from the beginning.
Yeah I definitely prefer when they hold a gear longer even if you lose some speed.
Please test again with the 6.6 gas and the 10 speed.
I plan on doing exactly that!
@@TheGettyAdventures outstanding really looking forward to it.
So the 2024 6.6L with the 10-speed trans is an amazing truck. Fuel economy is slightly better, but the interior refresh is a game changer. Ford's interior is dated. They need to fix that to get back ahead of Chevy/GMC. Plus, Ford is having way too many issues with build quality. Their cost is also a fair bit higher for comparably equipped trucks.
It will interesting to see which big gasser holds up down the road. I think I'd bet on the 6.6, but don't like the DFI on either Chevy 6.6 or the Ford 7.3
The 7.3 is a port injected engine.
My bad...I thought the 7.3 was one of those mixed up messes with both Port & DFI combined to give the best of both worlds, with more to go wrong???
How about ford or dodge. Same truck but de- tuned base level and HO models
Tfl guys struggled climbing the ike with a Chevy like that, maybe a bigger diff gear would help
Higher gears would help foresure
Up and down the hills shifting would be more to do with the cruise control and less to do with the motor and transmission wouldn't it ?
In your opinion. You going 6.4 hemi. , ford gas. Or the chev
Chevy is a great holiday hauler but in a commercial application that an engine is garbage when it comes to hauling heavy loads every day five days a week. Only the Cummins can handle that type of work looad. The Ford engine does OK but it has a lot of issues too
It’s not as powerful, but it gets the job done. The real advantage is the $10k gas over diesel price difference, and that this engine will last and not sideline you with emissions issues.
I absolutely hate everything Dodge makes. The Cummins is the best diesel on the market.
My question is is the gas block the 6.6 The same block for the diesel I know the heads have to be different The cam has to be different is the block the same
I think what you're noticing is very poor transmission tuning and of course like you mentioned only 6 gears vs 10. It's not so much a lack of power as it is the fact that the transmission is unresponsive. On some of those hills, if it downshifted earlier it would have hit 110 again much faster too. TFL also noticed this. The 10 speed reviews I've seen are great, and one guy "automotive inc" here on YT actually says the 6.6 10 speed does better than the ford, he's owned both but his ford crapped out on him (cam/lifter delamination). They should be far more comparable anyway.
May not win any races but will turn out to be way more reliable than the 7.3L Ford.The jackshaft- driven oil pump doesn't sound too impressive as for as long term reliability is concerned. There was a camshft issue with the Godzilla also.
If you could i would love to see someone let you borrow their 8.1 liter with the allison trans and yank a trailer around.
I have a 02 2500 8.1 Allison combo and have towed close to 14 lbs up to shaver lake with no problem. It's absolutely a freight train. The new GM 10 speed is junk. Sorry but GM screwed themselves by not putting a Allison transmission behind their new HD trucks.
There’s no replacement for displacement, I wish they still made the 8.1 Vortech Chevrolet should bring it back with the 10 speed like everybody’s saying🙌
I have an 02 2500 with 8.1 true 5 speed Allison transmission and would not trade it for the new 10 speed GM transmission. New 10 speed is not an Allison. GM and Ford both have the sam 10 speed with tiny differences. GM pays royalties to Allison for the name.
@@chrischavez2324 it would be nice to see them with the 8.1 or bigger 😶 vortex with an actual Allison made 10 speed transmission, not just branded. I think that they would sell the shit out of that.
How long until the intake valves are full of carbon? Direct injection and being a known oil burner are a recipe for disaster in a towing rig.
How do you like the 6.6 vs the 6.4 hemi?
They are pretty comparible to be honest. I think the 6.6L has a little more punch with the higher torque figure but it's also a newer engine. I keep hearing rumblings of a cummins gas engine coming down the line potentially for the ram HD trucks
Why isn’t anyone comparing the Ford 6.8 against the Chevy 6.6 for a more real world comparison?
As soon as those engines come in I'll be doing exactly that!!
Love my 2022 41000 miles no problems
They are solid trucks, these 6.6L are work horses
All the videos I've watched with the new 10-speed was no better than the 6 speed surprisingly.
Interesting 🤔
I think it will help but I want to see for myself on this towing loop. happy I have a nice baseline.
What videos have you been watching?? Every 24 Gasser with a 10 speed has performed so much better. The 10 speed was almost 2 mins faster up Ike than the 6 speed both towing 14k…
@@Billybob50119exactly!
@@Billybob50119 Agreed. I drove it and its night and day for city driving.
I kinda wish i would've waited for the 10 speed.
6 speed is still a solid unit.
Maybe dont tow 14k up a grade with cruise control..
I don't get that this was put out 6 months ago and it's not about the 10spd. They have been out over a year. Ya I have one. And my kid has 23 fords , all within 3 yrs old and gets a better deal by NOT using FLEET discount. Straight front axle, does a lot of commercial plowing with V box in back'
GM has always been more conservative than the competition
I'm with you on the "let's the speed drift" on the 6 speed. I had an 08 with the 6.0 and I HATED that transmission from the day I drove it off the lot. I just grabbed a 24 2500HD with the 6.6 and 10 speed and it's like night and day. I LOVE IT. Best thing GM did. Those 6 speeds SUCK!
IMHO, GM and Ford offer great packages, once and a while it takes an ass whipping to move forward and give the consumers what they want. This time it was GM behind the eight-ball, next time it might be Ford, such are the games that are played.
Lol thats a good way to put it. I thinn GM now offering the 10 speed is going to makw this 6.6L much more competitive with fords options
The 10 speed will make a big difference i think for 24
I think it should make a really nice upgrade!
Oil burner
The ten speed makes all the difference. Night and day difference towing
Still slower than the ford 😂
Im excited to see how much of a difference the 10 speed makes
@@freedomisntfree_44 o are you talking about the optional engine for a $ add 7.3?? The one that is delaminating cams and lifters faster than Ford can replace them?? 😂
@@Billybob50119 and yet no proof of it like the gm trucks 🤣🤭 enjoy pulling your camper every blue moon with a pos oil burning gm 😂
@@Billybob50119 and the FEW 7.3s that have failed are can and chassis you moron 🤣
Unfortunately for the GM fanboys (and girls) this configuration has to be directly compared to the 7.3 10 speed Ford, because atm it's the best (sic) GM has got.
And even with a 10 speed I find it unlikely it will match the Ford also, especially given the Ford's available optional final drive ratios.
My thoughts exactly. People who are looking at buying gassers are going to compare these engines. Im happy GM recognized the 6 speed transmission was just not cutting it.
Better mpg : more efficient engine -
Are you in America, if so whats up with the metric.
He's a Canadian in Canadia
It’s not an Allison anymore!
Hold on - is this the older one with the 6-speed? 2023 has the new 10-speed and that supposedly really helps this engine...
2023 has the 6 speed, the 2024 has the 10 speed
The videos I watched there was hardly any difference
2024's have a 10 speed.
@@robertchapman4488watch the Ike Gauntlet one, the 10 speed made a big difference. Also, those guys got great MPG on a 6.6 gas with 10 speed, unloaded.
Your bias always shows up ‼️
I remember reading an article back in 21 ( right after I bought my gas GMC HD naturally) that GM was in the process of making another gas v8 option engine for these trucks with a displacement over 8.0 liters. I think the wonderful Biden admin put the brakes on that project with all their new pro EV bulls**t. Would’ve been cool to see though. Thanks for the cool vid!
An 8L v8 would of been a monster lol
Still got an 8.1 with 6 speed allison. She aint all that but still runs
Lol 'wonderful' Biden administration. Love the sarcasm
Sounds like 6.6 suffers from oil consumption. And that cruise control programming is BS
Ya it was just odd seeing the truck drop speed like that
My biggest complaint on my 23' GMC 3500drw is definitely the transmission. I'll be trading in 25' and can't wait to try the 10speed and I'm hopeful they add a little more low end HP to this engine .
"Big displament gas engines" 😂
Long time Ford truck owner. My last purchase was a 2022 Silverado HD 2500 with a 6.6 gas. My truck is similar to your test truck.
All that to say, I’m very happy with my truck. I rarely tow over 12k (trailer & load) and the gasser does exactly what I need with ease. I’m not pulling daily or through mountains.
Great video and info.
Iv heard many happy owners with these 6.6L trucks and these engines are just work horses. Strong and reliable
You really trusting the lie-o-meters to tell you mpg? Got to hand calculate man.
After that heavy tow is there any oil left in the truck? 😂 jk
lol surprisingly I checked after the tow and she was full!
6spd? Wtf?!?
Ford is always best!
I am seeing so many 6.4 trucks these days. Seems guys are going away from diesel.
The modern diesel engines just come with alot of potential headaches and they are expensive. Makes alot of sense to go with a gasser HD these days
Just had a guy stop and ask me how I liked the 6.6 yesterday. Said he had 12k miles on his Cummins and it’s been in the shop 6 times for regen issues. I’d drop that truck like a bad habit.
Yeah I agree. I'm not towing often anyways so a gas truck is perfect for me. Cheap cheap maintenance too.
Imagine how lousy the dodge will be!
6 speed? I know you can only test what you have available but comparing the 6.6 with 6 speed to the 7.3 with 10 speed is not realistic in my opinion.
Well the 6.6L came with the 6 speed for 3 years might as well see how it does against the competition and set a nice baseline for the improved performance when I test the 10 speed.
@@TheGettyAdventures Yes sir I hear ya. My comment was based on the premise that we already know (and maybe that's my assumption) there's a massive improvement in GM's 10 speed Allison with the 6.6 gas compared to the 6 speed with 6.6 gas. I have a friend who bought a 2024 and he says it's literally night and day difference. Not trying to hate on your video. I watch them all and enjoy them. If you have the opportuntiy to get a 2024 6.6 gas with the 10 speed allison and title it as a comparison to the 7.3 Godzilla I think the video would be a huge hit. Take care!
Wtf
crazy eh
Holy cow!! A large engine mechanic? Comparing a larger displacement big block to last years Chevy with a small block and an outdated 6 speed is childish. The current 10sp on the Chevy is a game changer. That is a load for a diesel anyway. If you are a Fleet manager, the Chevy is a better choice. If you occasionally tow, the Chevy is a better choice. If you tow regularly the diesel is the only choice. Why not compare the Godzilla to the Duramax diesel? Just dumb is all I can say about this large engine mechanic.
This is the current 2023 HD 2500 Chev with the current transmission and the biggest gas engine available. What more can the guy do? You're talking like 2024 is already here!
@@kylebutler7142 all the other reviewers are using the 10sp.
Your running out of trucks to test ….lol.