Being an owner operator with a few big trucks, one 855 small cam, one 855 big cam 3 and one very oil hungry 8v-71 Detroit I buy a lot of diesel oil. I have a 55 gallon drum of Delo 100 straight weight SAE-40 for the Detroit but everything else gets 15w40 Rotella from a bulk tank. When I say everything I have a pair of GMC K-3500 pickups, one 94 with a Tbi 350 and one 98 with a TPI / vortec 350. The two one tons get 3k mike oil changes with the same 15w40 from the bulk tank and I’ve never had an issue with either. I bought the GMC’s off another trucking company and they told me they always ran 15w40 in them and kept it changed every 3k miles and both trucks now have well over 250,000 miles on the original engines. I guess what I’m getting at is it really seems like these tight clearance engines they’re building today don’t seem to last any better than the old stuff where you can just stock the same oil for everything and get good life out of a whole fleet of engines.
When the 19s came out we didn't even have a part number for 10W30 so we used 5w40 on all the trucks for about 6 months. I've wanted to test the 5w40 for shits and giggles.
Im pretty sure, all rams since 2013/2014 model year come factory filled with addative based 10W30 oil similar to a premium break in oil that you would find on the shelves. Though the recomended during those years was 5W40 or 15W40 for oil services. Probably a decision like "We use this for break in, why not use it for service as well."
Haven’t really towed with my 19 2500 mostly daily driven with limited highway miles but I had to get a hd truck before getn a heavy trailer. I tow atvs and a dirt bike with gear and a family so far. Any advice on how to take better care of my truck? Change filters by time rather than mileage and run power service diesel fuel supplements during the seasons out in Colorado. I want to tow a heavy load for a few long days just to work it out! Thanks
I have been running AMSOIL 15w-40 in all our trucks, 3rd to 5th gen. We live in CA so it doesnt get really cold here unless we head to the mountains. never had a problem and we were running Rotella T4 15w-40 before, we have barrels of them. If we didnt have so much id probably switch over especially on the 5th gens. but the 4th gens and older run best with 15w-40 unless youre in a really cold climate without plugging in and a grid heater delete.
I've got a 4th Gen, in Alberta Canada where we hit some pretty cold temp in the winter. I run Amsoil 5w40 all year. I'm deleted and no grid heater, I do always have to plug in below -5C.
7.3 Powerstrokes have hydraulic lifters and 15w40 is all I have ever ran in my 7.3s. They start fine in the cold as long as the glow plug relay isn't bad.
Yeah I think that the company has pressure to get better mpg so they recommend 10w30 but I have read comments on People saying 15w40 is not adequate for 19+ Cummins
the recent issue with tapping noise and engine trouble around 90 to 100 thousand miles on the odometer seems to coincide with the change in oil recommendations on the oil fill cap as the older 6.7L models before the "improved composite 1000 ft. lbs. of torque engine block " had 15/40 as the recommended oil to use. as with all the previous versions including the 5.9 L 2004/2006 diesels I had and no issues. perhaps there is a mistake in the new composite block where there is a... excessive hot spot ....maybe .the 5/30 oil flows too hot thru in some oil plain bearing surfaces and maybe causing galling of the bearing /metal surfaces. I am noticing when I drive up a 2.5 km ....hill....../gravel road to my workplace that my 2019 and more so in the new 2022 /3500 limited diesel the engine temperature coolant is topping 205 c . along with higher oil temp 210 c .? it seems the oil temp is driving the coolant temp. higher comparing my 2019 same type of truck exactly would top out at 196 c coolant temp. and oil temp at 200c. my previous models of the same trucks a 2015 and 2011 coolant temp up the same grade/hill was cooler at 186c for coolant and these 6.7L engines had cast iron blocks and 15/40 oil. and no issues ever. so is there a correlation with the composite block and the 5/30 oil vs. the early 6.7's 15/40 cast iron blocks.? PS: I have only 14000km on my 2022 and 2 weeks ago I noticed what sounded like a tapping noise/hydraulic lifter noise sporadically after climbing the hill and stopping to unlock the gate.......going to be talking to the dealer as I have been a customer there for 20 years🤔
mine has a little lifter chatter at low rpm at least that’s what i think it it just curious have you noticed this also or if maybe my oil 5w/40 is causing it? maybe 10w30 would quiet that down?
Paul, appreciate the insight. I have a 2021 3500 HO and I’ve taken it to the dealer once and I’m going to do my oil changes moving forward. I only have 9k miles on it so far and will pull a 11k RV here in a couple of months. I’ve been going back and forth between 10-30 and 5-40 and everyone I know is telling e 5-40. I live in Colorado but most of the time it’s well above zero. I’m a little torn and don’t know what to do but I’ll definitely take your advice and look into the 10-30.
I too live in CO and have a 2020 HO and I run Amsoil 5-40 year around and it always runs great! I also work in WY and MT a lot and do lots of cold starts when its well below zero with zero issues.
Wonderful Video! I have a 2022 Ram 3500 HO Limited with 4,200 miles. It looks to be a big mystery of what the factory oil fill was in these trucks, some say Shell, some say Valvoline, some say 10-30 some say 5-40 but regardless I decided to changed my oil with Rotella T5 10w-30 SimI Synthetic yesterday and my truck drives different in a better way today! It's as if I have more power, the truck is more agile and the top end to my ear is just a tad bit less noisy but the sound is different ( I am a sound engineer so I pick up on what things sound like). My drive today was in 75 Degree F weather and I truly wonder if the factory fill must have been 5W 40 and you just are not suppose to "feel" an oil change but I experienced what this video suggest you notice when using 10w-30 vs 5w-40. I live in the South and my truck will never see below zero and perhaps only 1-2 days a year below 32F so I may use Rotella T5 10W-30W with OEM filter year round and my truck sure likes what I put in it yesterday! I ran across this video searching and wondering if anyone else could tell a difference in how a Ram w/ Cummins drives after an oil change. Over the years the only time I could "feel and difference" with a oil change was my 2012 Ram 1500 gas Hemi cylinder deactivation felt a tiny bit smother when I switched from Dyno to Synthetic and my 02 Crown Vic felt sluggish on cool morning drives when I changed from the recommended 5w-20 I had always used to 5w-30. So I'm not 100% what my factory fill was or exactly why my new truck "just likes her new oil" but I can tell you my Ram has never driven better than with a fresh Rotella T5 10w-30 oil change!
5w-40 is a year around oil hot or cold. Don’t over think. Even Rotella recommends year around. 5w-40 is a good flow winter or summer and with 40 weight is superior protection.
dont assume that a heavier oil adds better lubrication. if its too thick the required oil film thickness between parts may not form and excessive wear may result. dont you think cummins knows what the correct oil is, after all they also provide the warranty. if there was any chance a heavier oil would perform better they would specify it.......... imho thanks for the video :)
If you use the truck 10-14 hours a day you can use 15-40 … I have 5 trucks 21+and have on them over 100k miles…. Then if you use the truck sometimes just to go around town and only sometimes towing use 5-40
as a mechanic i would never put a 30 weight in a heavy diesel engine only car diesels look at the ram eco diesel the recall was to literally switch to shell rotella t6 5 w 40 and now ram and cummins want a 30 weight in summer ? and 40 in winter that makes no sense it 1 if anything it should be oppisite and 2 just run the 5w40 get a good oil like t6 i use that oil in just about everything never had a issue I would only use a 30 oil if it was neede for warranty and id find a very high qaulity oil for diesels but after warranty go back to 40 its like my ram 1500 hemi says 5 20 i use a synthetic 5 20 now but when warranty up am going to a 30 then maybe a t6 5 40 but that can be counter prductive to the varaible valve timing system if go to thick
I've always wondered, why 5w40 for winter? Why not use a 5w30? If the 30 weight is good enough for Hot temps, why do you need a 40 weight for cold temps? I understand the 5 weight part. For example my 24v 5.9's call for 15w40 for 32f and up. 10w30 for 0f-32f. And 5w30 for anything below 0f. I just guess the 5w40 covers all bases well?
How is that even possible during the heat summer and Texas it gets about 102 to 109° here in the summer 5w-40 is really that good I thought the thicker the better during the summer so the oil won't burn
@@supremekingjesus425 a 40 weight will be slightly thicker than a 30 weight at 212° I use 5w40 year around. Even if it’s 100° outside a 5w will get to those tight areas quicker than a 15w it really shines when it’s cooler out the most. Hope this helped your question
The whole 10w30 if it’s warm and 5w40 if it’s cold seems backwards to me. You would think heavier oil is for warmer temperatures. But I never forget what the Cummins rep said about these new engines: “50% will need torn down at 250k miles.” I’m sorry but I think the gasoline engine oil being drug out to 15k mile oil change interval might have something to do with this shortened life expectancy…maybe by design?
@@martinmolina8196 It kills the block. The roller lifters have a lot of surface area. I think that some oils may cause the lifter to skid and not roll. This wipes out the camshaft and when you run it to long the lifter can turn and ruin the block.
@@5inchborespaceing thanks for responding next step pull the engine and check the cam and lifter because I don’t have the tools to hold the lifters and install the lifters to expensive.
IMO doing research is fine however just because someone on TH-cam uses one thing doesn’t make it the best for you or make it fact. I read the comments people hounding him for info he clearly isn’t providing either because he doesn’t know or doesn’t care to answer. I am fortunate that half my family works for Cummins and what he is saying may be correct for him and what he’s doing but it is not what Cummins recommends.
@@justinspillmann4048 The only number is how many gallons it takes to refill is divided by the miles driven. Since my first diesel truck was in the early 90’d
Thanks Paul for the daily videos!
Thanks Sr.
GOD BLESS Y'ALL...
I run 5w-40 full synthetic year round. I also live in a area where temps get down to negative teens in January.
10w30 it is!!!
I dig all your 5th gen info videos!
Thank you
Being an owner operator with a few big trucks, one 855 small cam, one 855 big cam 3 and one very oil hungry 8v-71 Detroit I buy a lot of diesel oil. I have a 55 gallon drum of Delo 100 straight weight SAE-40 for the Detroit but everything else gets 15w40 Rotella from a bulk tank. When I say everything I have a pair of GMC K-3500 pickups, one 94 with a Tbi 350 and one 98 with a TPI / vortec 350. The two one tons get 3k mike oil changes with the same 15w40 from the bulk tank and I’ve never had an issue with either. I bought the GMC’s off another trucking company and they told me they always ran 15w40 in them and kept it changed every 3k miles and both trucks now have well over 250,000 miles on the original engines. I guess what I’m getting at is it really seems like these tight clearance engines they’re building today don’t seem to last any better than the old stuff where you can just stock the same oil for everything and get good life out of a whole fleet of engines.
When the 19s came out we didn't even have a part number for 10W30 so we used 5w40 on all the trucks for about 6 months. I've wanted to test the 5w40 for shits and giggles.
Im pretty sure, all rams since 2013/2014 model year come factory filled with addative based 10W30 oil similar to a premium break in oil that you would find on the shelves. Though the recomended during those years was 5W40 or 15W40 for oil services. Probably a decision like "We use this for break in, why not use it for service as well."
Do you use conventional 10w30 or the semi-synthetic? I’ve always used the valvoline from Cummins but it appears to be backordered.
Haven’t really towed with my 19 2500 mostly daily driven with limited highway miles but I had to get a hd truck before getn a heavy trailer. I tow atvs and a dirt bike with gear and a family so far. Any advice on how to take better care of my truck? Change filters by time rather than mileage and run power service diesel fuel supplements during the seasons out in Colorado. I want to tow a heavy load for a few long days just to work it out! Thanks
Hi,
Thanks for video.
Where did you get Schaeffer 10w30 55 gal drum
10/30 affected turbo sound a little different in my 6.7 Powerstroke I used to cut 15/40 with 10/30 mostly did it for the spun bearings
I have been running AMSOIL 15w-40 in all our trucks, 3rd to 5th gen. We live in CA so it doesnt get really cold here unless we head to the mountains. never had a problem and we were running Rotella T4 15w-40 before, we have barrels of them. If we didnt have so much id probably switch over especially on the 5th gens. but the 4th gens and older run best with 15w-40 unless youre in a really cold climate without plugging in and a grid heater delete.
I've got a 4th Gen, in Alberta Canada where we hit some pretty cold temp in the winter. I run Amsoil 5w40 all year. I'm deleted and no grid heater, I do always have to plug in below -5C.
Full synthetic , synthetic-blend or regular oil ???
7.3 Powerstrokes have hydraulic lifters and 15w40 is all I have ever ran in my 7.3s. They start fine in the cold as long as the glow plug relay isn't bad.
Yeah I think that the company has pressure to get better mpg so they recommend 10w30 but I have read comments on People saying 15w40 is not adequate for 19+ Cummins
I'm assuming you're running Schaeffer's 10/30?
the recent issue with tapping noise and engine trouble around 90 to 100 thousand miles on the odometer seems to coincide with the change in oil recommendations on the oil fill cap as the older 6.7L models before the "improved composite 1000 ft. lbs. of torque engine block " had 15/40 as the recommended oil to use. as with all the previous versions including the 5.9 L 2004/2006 diesels I had and no issues. perhaps there is a mistake in the new composite block where there is a... excessive hot spot ....maybe .the 5/30 oil flows too hot thru in some oil plain bearing surfaces and maybe causing galling of the bearing /metal surfaces. I am noticing when I drive up a 2.5 km ....hill....../gravel road to my workplace that my 2019 and more so in the new 2022 /3500 limited diesel the engine temperature coolant is topping 205 c . along with higher oil temp 210 c .? it seems the oil temp is driving the coolant temp. higher comparing my 2019 same type of truck exactly would top out at 196 c coolant temp. and oil temp at 200c. my previous models of the same trucks a 2015 and 2011 coolant temp up the same grade/hill was cooler at 186c for coolant and these 6.7L engines had cast iron blocks and 15/40 oil. and no issues ever. so is there a correlation with the composite block and the 5/30 oil vs. the early 6.7's 15/40 cast iron blocks.? PS: I have only 14000km on my 2022 and 2 weeks ago I noticed what sounded like a tapping noise/hydraulic lifter noise sporadically after climbing the hill and stopping to unlock the gate.......going to be talking to the dealer as I have been a customer there for 20 years🤔
mine has a little lifter chatter at low rpm at least that’s what i think it it just curious have you noticed this also or if maybe my oil 5w/40 is causing it? maybe 10w30 would quiet that down?
Paul, appreciate the insight. I have a 2021 3500 HO and I’ve taken it to the dealer once and I’m going to do my oil changes moving forward. I only have 9k miles on it so far and will pull a 11k RV here in a couple of months. I’ve been going back and forth between 10-30 and 5-40 and everyone I know is telling e 5-40. I live in Colorado but most of the time it’s well above zero. I’m a little torn and don’t know what to do but I’ll definitely take your advice and look into the 10-30.
I too live in CO and have a 2020 HO and I run Amsoil 5-40 year around and it always runs great! I also work in WY and MT a lot and do lots of cold starts when its well below zero with zero issues.
Have a fleet of Ford 6.7’s and there is a measurable decrease in mpg with the thicker oil. It adds up in cost over time.
Sorry, sticking with what Cummins recommends. But I can appreciate questioning recommendations, because where would we be without that?🤔
Great Video
1:10 I almost run away when I saw that Tahoe parked like that
5/40 is full synthetic. If you like 10/30 I’d it full synthetic or blend. What oil do you use?
Wonderful Video! I have a 2022 Ram 3500 HO Limited with 4,200 miles. It looks to be a big mystery of what the factory oil fill was in these trucks, some say Shell, some say Valvoline, some say 10-30 some say 5-40 but regardless I decided to changed my oil with Rotella T5 10w-30 SimI Synthetic yesterday and my truck drives different in a better way today! It's as if I have more power, the truck is more agile and the top end to my ear is just a tad bit less noisy but the sound is different ( I am a sound engineer so I pick up on what things sound like). My drive today was in 75 Degree F weather and I truly wonder if the factory fill must have been 5W 40 and you just are not suppose to "feel" an oil change but I experienced what this video suggest you notice when using 10w-30 vs 5w-40.
I live in the South and my truck will never see below zero and perhaps only 1-2 days a year below 32F so I may use Rotella T5 10W-30W with OEM filter year round and my truck sure likes what I put in it yesterday!
I ran across this video searching and wondering if anyone else could tell a difference in how a Ram w/ Cummins drives after an oil change.
Over the years the only time I could "feel and difference" with a oil change was my 2012 Ram 1500 gas Hemi cylinder deactivation felt a tiny bit smother when I switched from Dyno to Synthetic and my 02 Crown Vic felt sluggish on cool morning drives when I changed from the recommended 5w-20 I had always used to 5w-30.
So I'm not 100% what my factory fill was or exactly why my new truck "just likes her new oil" but I can tell you my Ram has never driven better than with a fresh Rotella T5 10w-30 oil change!
My experience is the same. I live in the NorthWest so I can run 10-30. It feels more responsive.
What oil temp do you idle to before shutting down your engine?
I’m partial the 5w40… I’m in south Mississippi… I haul 25k locally…
5w-40 is a year around oil hot or cold. Don’t over think. Even Rotella recommends year around. 5w-40 is a good flow winter or summer and with 40 weight is superior protection.
dont assume that a heavier oil adds better lubrication. if its too thick the required oil film thickness between parts may not form and excessive wear may result. dont you think cummins knows what the correct oil is, after all they also provide the warranty. if there was any chance a heavier oil would perform better they would specify it.......... imho
thanks for the video :)
Interesting 👍🏻
So with temps in -35, -40 degrees Celsius, 10w30?
I just bought 5 gallon 5 w 40 w to see difference all before 10 w 30 use
Is your whole fleet non CDL?
mpg? Dually? 4:10 rear?
If you use the truck 10-14 hours a day you can use 15-40 … I have 5 trucks 21+and have on them over 100k miles…. Then if you use the truck sometimes just to go around town and only sometimes towing use 5-40
as a mechanic i would never put a 30 weight in a heavy diesel engine only car diesels look at the ram eco diesel the recall was to literally switch to shell rotella t6 5 w 40 and now ram and cummins want a 30 weight in summer ? and 40 in winter that makes no sense it 1 if anything it should be oppisite and 2 just run the 5w40 get a good oil like t6 i use that oil in just about everything never had a issue I would only use a 30 oil if it was neede for warranty and id find a very high qaulity oil for diesels but after warranty go back to 40 its like my ram 1500 hemi says 5 20 i use a synthetic 5 20 now but when warranty up am going to a 30 then maybe a t6 5 40 but that can be counter prductive to the varaible valve timing system if go to thick
I've run 15w-40 and 10w-30 in Louisiana and I'm noticing more material on the plug with 30
I've always wondered, why 5w40 for winter? Why not use a 5w30? If the 30 weight is good enough for Hot temps, why do you need a 40 weight for cold temps? I understand the 5 weight part.
For example my 24v 5.9's call for 15w40 for 32f and up. 10w30 for 0f-32f. And 5w30 for anything below 0f.
I just guess the 5w40 covers all bases well?
40 covers all the bases. Best for diesel use mainly too due to the additives and other things in it
5w-40 should be the best. Flows better when cold and protects better when hot!
How is that even possible during the heat summer and Texas it gets about 102 to 109° here in the summer 5w-40 is really that good I thought the thicker the better during the summer so the oil won't burn
Im in south texas and was thinking the same 😂
@@supremekingjesus425 a 40 weight will be slightly thicker than a 30 weight at 212° I use 5w40 year around. Even if it’s 100° outside a 5w will get to those tight areas quicker than a 15w it really shines when it’s cooler out the most. Hope this helped your question
Plus a 5w40 and a 15w40 is almost the same viscosity at 212° if you wanna compare those.
Question is what weight is 5w at 100-110 degrees? I'm in Louisiana and we see at least 90 at daylight in the summer
The whole 10w30 if it’s warm and 5w40 if it’s cold seems backwards to me. You would think heavier oil is for warmer temperatures. But I never forget what the Cummins rep said about these new engines: “50% will need torn down at 250k miles.” I’m sorry but I think the gasoline engine oil being drug out to 15k mile oil change interval might have something to do with this shortened life expectancy…maybe by design?
I just run 15-40 in all my Cummins even in the X15 2021.
No 15-40 on the 19’ and up
I think 5W40 even better in summer time …specially down south -Houston for me
We lost a lifter on a 2019. We ran 15w40. service bulletin says premature lifter failure with wrong oil.
What happened with the lifter I’m with the same issue with 2021 and now the truck is like engine locks
@@martinmolina8196 It kills the block. The roller lifters have a lot of surface area. I think that some oils may cause the lifter to skid and not roll. This wipes out the camshaft and when you run it to long the lifter can turn and ruin the block.
@@5inchborespaceing thanks for responding next step pull the engine and check the cam and lifter because I don’t have the tools to hold the lifters and install the lifters to expensive.
I use full synthetic 15w-40 rotella t6. Got like 20 gallons. Should i be worried lol? kinda wanna use it up.
15w-40 is a no go on the new 19 above Cummins.
Been using it since new. Got 240k on it already. Wel see what happens.
@@hotshottransport945 ignorance is bliss 😂 good luck brother!!!
I’ve been using it since new, for 240k miles, I don’t think it’s good to switch back.
10w-30👍🏿
There was a TSB from Ram for the 19+ trucks stating that 15w40 can damage the engine. Do not use.
Yes ram calls for 10w30 and 5w40 do to the 1000ftlb motor has hydraulic lifters.
MY 2012 FORD 6.7 SAYS 10W 30 NORMAL USE.
SEVERE DUTY 5W40
We’re talking about Cummins not little Fords 😂 all jokes
@@viridian839 SOOO HOW ARE THE CUMMINGS ENGINES DOING ON THE 2022 RAMS? 🤣🤣🤣🤣🤣
Schaffer’s for the win
Does 10w30 really give better mpg?
No. I experimented with it. You will only see miniscule improvements in whole fleets.
5w-40 synthetic it is.
IMO doing research is fine however just because someone on TH-cam uses one thing doesn’t make it the best for you or make it fact. I read the comments people hounding him for info he clearly isn’t providing either because he doesn’t know or doesn’t care to answer. I am fortunate that half my family works for Cummins and what he is saying may be correct for him and what he’s doing but it is not what Cummins recommends.
T- 6 0-40 in my 5.9 YEAR round :) 2006 26mpg at 60
Do not waste your time watching this video based on no real data whatsoever 😢
Lower weight oil makes more power because of parasitic drag.
15W-40 is forbidden in 2019 and later. As unix nerds would say: Read The Fine Manual.
Always want mileage
The computer always show better fuel economy than hand calculated numbers. Be sure to tell us which numbers you are using.
@@justinspillmann4048
The only number is how many gallons it takes to refill is divided by the miles driven. Since my first diesel truck was in the early 90’d
Sorry my reply was in complete but I believe I answered your question