New 2025 Ram 2500 6.7 cummins

[carl2591]

I have a NTM 2017 6.7 cummins and will go 10K oil changes.. if you have not first oil change at 1000 or less then at 3K and 7K then do the 10K... helps to get the break in material out of the engine.. google "oil geek" break in.. fromer oil guy at Joe Gibbs racing.. Lake Speed Jr.. lottttts of info on oil..

 

[JHZR2]

I wouldn’t necessarily go 15k on ff. I would want good info on soot loading prior to going all the way to 15k.

 

[Hasty66]

Congrats on the new truck! Since you are in Nevada I would use the 5w-40 and start off with cheap spec brand for the first two oil changes to get the initial break in metals out of the engine. After that I would use a spec semi-syn or full syn 5w-40 and find the OCI sweet spot with UOAs.

I purchased a new 2024 Chevy 2500HD a year ago and the manual states to change the oil when the computer tells me or once a year, nope not doing that. I have the option of running 15W-40 in my engine and that is what I use in the triple digit summers and very mild winters of south central Texas.

I did the first oil change at 400 mi, second at 1,500 mi, third at 5,000 mi, and will continue 5,000 mi intervals until the copper settles down in the UOA. Soot load has been steady at .3% since I started the 5,000 intervals. I have used in sequence the following oils: Mobil Delvac 1300 Super (factory), Shell Rotella T4, Shell Rotella T4, Shell Rotella T6, Amsoil HD 15w-40, Amsoil HD 15w-40, and Mobil Delvac 1300 Super. Have two more Mobil Delvac 1300 Super to use thanks to a great sale at Tractor Supply.

 

[Dragon44]

Time will tell if the 2025+ block change addresses the cam/lifter issues of 2019-2024. Until then and given the low cost of oil, I'd run a readily available full syn on a reasonable interval. Major brand 5w-40 would be my choice. Whatever is easy to stock up on with rebate. Rotella T6, or Delvac ESP. A short interval for "break-in" and then 7,500 thereafter depending on what your actual drive cycle looks like.

Votex drain plug for the win.

Time will tell what the "best" filter choice is for 2025+, but you can't go wrong with Fleetgard stratopores. Genos had them in stock as well as the fuel filters but looks like oil filters are presently on backorder.

View attachment 297093

I just changed the oil today it only has 3500 miles but like to do it early. I went with schaeffers 5w40 and fleetguard filter.

 

[Dragon44]

Schaeffer's 9000 synscheild otr 5w-40 maybe a good route to go. Cenex enviro 5w-40 is a thought also,they too make a decent diesel oil among their products line.

Thats what i went with schaeffers 5w40. Always loved there products.

 

[daves87rs]

With towing, I’d do 3x a year around 7-8k.

Fresh oil is a good thing……

 

[Ruby]

I've never used any Schaeffer's oil products in my 2011 3500, however their products are quality. I mostly use the Fleetguard Stratapore oil filters or the Mopar MO285 oil filter and always the Rotella T6 5w40 every 5000 miles. My truck calls for the 15w40 at zero degrees and above or 5w40 year round, I choose the Rotella T6 5w40 year round. With the 2019 and newer Rams, I never understand why some choose to run the 15w40? The 10w30 or 5w40 is the only choice for the 2019 and newer Rams. Why take a chance to run the wrong oil and jeopardize your warranty and possibly cause wear damage, no thanks.

 

[#18FAN]

I've never used any Schaeffer's oil products in my 2011 3500, however their products are quality. I mostly use the Fleetguard Stratapore oil filters or the Mopar MO285 oil filter and always the Rotella T6 5w40 every 5000 miles. My truck calls for the 15w40 at zero degrees and above or 5w40 year round, I choose the Rotella T6 5w40 year round. With the 2019 and newer Rams, I never understand why some choose to run the 15w40? The 10w30 or 5w40 is the only choice for the 2019 and newer Rams. Why take a chance to run the wrong oil and jeopardize your warranty and possibly cause wear damage, no thanks.

Using a high quality 15w40 in Phoenix summer what benefits would I get using a 5w40 in a 19 and up 6.7l

 

[Ruby]

Using a high quality 15w40 in Phoenix summer what benefits would I get using a 5w40 in a 19 and up 6.7l

For one, if there is any remaining power train/engine coverage, the warranty could be in jeopardy using the 15w40 oil when Ram clearly states 10w30 or 5w40 for 2019 and newer. If I had a 2019 or newer with any active warranty I wouldn't use the 15w40 just my two cents. Out of warranty, what effects will the 15w40 have on the lifters on the 2019 and newer in the long run? That would be an expensive gamble for me if I owned a 2019 or newer.

I know there are many good 15w40 oils out there and many Ram owners have great results with 15w40 oil, but due to recommendations of what oils to use per the Warranty and Owners Manuel that would guide me. If there are any warranty issues, the Dealer will look at everything carefully to make sure the issue(s) weren't caused by negligence on the customer's part because the parts/repairs are not cheap and the Dealer will not make as much on warranty repairs.

My 2011 calls for 15w40 zero degrees and above or 5w40 year round. I run the Shell Rotella T6 5w40 synthetic year round because my Ram does well with it, no usage or top off between oil changes. My OCI is every 7500 miles. Due to the emissions stuff on my truck, I change the oil and oil filter every 5000 miles because I don't get a chance to run the truck as hard as I should. These trucks like to run hard (not abused) to keep the soot levels lower.

 

[#18FAN]

For one, if there is any remaining power train/engine coverage, the warranty could be in jeopardy using the 15w40 oil when Ram clearly states 10w30 or 5w40 for 2019 and newer. If I had a 2019 or newer with any active warranty I wouldn't use the 15w40 just my two cents. Out of warranty, what effects will the 15w40 have on the lifters on the 2019 and newer in the long run? That would be an expensive gamble for me if I owned a 2019 or newer.

I know there are many good 15w40 oils out there and many Ram owners have great results with 15w40 oil, but due to recommendations of what oils to use per the Warranty and Owners Manuel that would guide me. If there are any warranty issues, the Dealer will look at everything carefully to make sure the issue(s) weren't caused by negligence on the customer's part because the parts/repairs are not cheap and the Dealer will not make as much on warranty repairs.

My 2011 calls for 15w40 zero degrees and above or 5w40 year round. I run the Shell Rotella T6 5w40 synthetic year round because my Ram does well with it, no usage or top off between oil changes. My OCI is every 7500 miles. Due to the emissions stuff on my truck, I change the oil and oil filter every 5000 miles because I don't get a chance to run the truck as hard as I should. These trucks like to run hard (not abused) to keep the soot levels lower.

Yes but you never answered what benefits you will have at say 110F temperature with a 5w40 only thing that changes is cold start properties you understand stand that correct.

 

[johnmyster]

Yes but you never answered what benefits you will have at say 110F temperature with a 5w40 only thing that changes is cold start properties you understand stand that correct.

Not really. The curve will be different from one end to the other. The curve is lower for the 5w at -30 C than for the 15w at -25 C, but anywhere else is a guess. The curves aren't generally/always perfect log fits between the two presented data points.

Internet lore is that 5w-40 will be a higher quality base than 15w-40, but I'm not sure anybody has proof when comparing two grades within a full syn product line: T6 vs T6, Extreme vs ESP, XSP400 vs XSP400, etc.

Generally, a 15w-40 will have higher 100 C viscosity and HTHS even though they're both 40 weights, in theory....because grades are ranges. Generally 15w-40 will have lower volatility. Personally I'm more concerned about an oil holding together at 120 C, heat soaked towing on grade. I want enough oil pressure to ensure piston cooling jets remain active.

In theory, the 5w curve is only 10 C lower on the low end than the 15w curve. So if you can start your 5w at -30 C, it's no different than starting on 15w at -20 C. The user manual brick wall at 0 F for 15w-40 makes no sense in this regard.

 

[#18FAN]

Not really. The curve will be different from one end to the other. The curve is lower for the 5w at -30 C than for the 15w at -25 C, but anywhere else is a guess. The curves aren't generally/always perfect log fits between the two presented data points.

Internet lore is that 5w-40 will be a higher quality base than 15w-40, but I'm not sure anybody has any proof when comparing two grades within a full syn product line: T6 vs T6, Extreme vs ESP, XSP400 vs XSP400, etc.

Generally, a 15w-40 will have higher 100 C viscosity and HTHS even though they're both 40 weights, in theory....because grades are ranges. Generally 15w-40 will have lower volatility.

In theory, the 5w curve is only 10 C lower on the low end than the 15w curve. So if you can start your 5w at -30 C, it's no different than starting on 15w at -20 C. The user manual brick wall at 0 F for 15w-40 makes no sense in this regard.

You still give no reason why a failure would occur besides them doing a cya possibly because people ran garbage 15w40 because many are low quality.

 

[johnmyster]

You still give no reason why a failure would occur besides them doing a cya possibly because people ran garbage 15w40 because many are low quality.

My proof is logic which I will happily supply. You think the failures are occurring because of 15w? News flash. People been running a wide variety of diesel oils for decades including premium and garbage. Don't blame the oil on poor mechanical design.

Read the TSB. It blames deposits. What magical property of oil is related to carbon deposits (or preventing them) within iddy biddy lifter parts? It ain't cold flow viscosity my friend. It's chemistry. This is BITOG where we expect readers to know the difference. Ram wants you to use better chemistry, so they're nay naying the typically conventional 15w grade. (It's kinda like what Ford more elegantly did when they released the F1 spec and back-spec'd to it.)

I, on the other hand, believe that Ram has some morsel of evidence that using higher QUALITY oil, regardless of grade, provides the following two bandaids:

1) Potentially keeping things clean enough to limp the hydraulic lifters through the warranty period.
2) Potentially providing better lubrication, enough to limp the rollers and cam lobes through the warranty period, despite the rollers rolling sideways due to poorly machined alignment pin slots in the velveta cheese CGI block and poor cam/lifter metallurgy.

You see the oil as the culprit. I see the oil as the band aid...as supported by the most recent TSB magic elixir nonsense. Bad design is the culprit. Just like the 6.4 hemi. Just like the 3.0 ecodiesel. Just like the GM 6.2. Ad nauseum.

If I was wrong, you would see higher rates of 19-24 valvetrains swarfing themselves to death in colder climates, because after all, 5w is only 10 C thinner than 15w. This is not the case. 19-24 valvetrains are failing regardless of climate. Thick oil is not the problem. If I was FCA I'd do the same thing. I'd try every cheap fix I could find to try and magically get those motors through warranty. Better oil and additives are two easy places to start.

Got some handy photos over here for you. https://www.igotacummins.com/threads/25784-Hamilton-Cam-Flat-Tappet-Conversion/page2

Do we think 15w vs 5w caused this to happen in 58k miles?

 

[#18FAN]

My proof is logic which I will happily supply. You think the failures are occurring because of 15w? News flash. People been running a wide variety of diesel oils for decades including premium and garbage. Don't blame the oil on poor mechanical design.

Read the TSB. It blames deposits. What magical property of oil is related to carbon deposits (or preventing them) within iddy biddy lifter parts? It ain't cold flow viscosity my friend. It's chemistry. This is BITOG where we expect readers to know the difference. Ram wants you to use better chemistry, so they're nay naying the typically conventional 15w grade. (It's kinda like what Ford more elegantly did when they released the F1 spec and back-spec'd to it.)

I, on the other hand, believe that Ram has some morsel of evidence that using higher QUALITY oil, regardless of grade, provides the following two bandaids:

1) Potentially keeping things clean enough to limp the hydraulic lifters through the warranty period.
2) Potentially providing better lubrication, enough to limp the rollers and cam lobes through the warranty period, despite the rollers rolling sideways due to poorly machined alignment pin slots in the velveta cheese CGI block and poor cam/lifter metallurgy.

You see the oil as the culprit. I see the oil as the band aid...as supported by the most recent TSB magic elixir nonsense. Bad design is the culprit. Just like the 6.4 hemi. Just like the 3.0 ecodiesel. Just like the GM 6.2. Ad nauseum.

If I was wrong, you would see higher rates of 19-24 valvetrains swarfing themselves to death in colder climates, because after all, 5w is only 10 C thinner than 15w. This is not the case. 19-24 valvetrains are failing regardless of climate. Thick oil is not the problem. If I was FCA I'd do the same thing. I'd try every cheap fix I could find to try and magically get those motors through warranty. Better oil and additives are two easy places to start.

Got some handy photos over here for you. https://www.igotacummins.com/threads/25784-Hamilton-Cam-Flat-Tappet-Conversion/page2

Do we think 15w vs 5w caused this to happen in 58k miles?

View attachment 300149

I never said 15w was to blame how do you get that at whatever ever I wrote. Full disclosure I run a 5w40 HPL in a 21 6.7l 3500

 

[johnmyster]

I never said 15w was to blame how do you get that at whatever ever I wrote. Full disclosure I run a 5w40 HPL in a 21 6.7l 3500

I'll even play devils advocate. Find a 10w-30 conventional that meets MS-10902.

FCA is telling you to use full synthetic. They might be telling you not to use 15w-40, but that's not really their end goal.

 

[Ruby]

Yes but you never answered what benefits you will have at say 110F temperature with a 5w40 only thing that changes is cold start properties you understand stand that correct.

Well, all I can say is that the 2019 and newer Ram 6.7 Diesels call for either 10w30 or 5w40. I am not an engineer or scientist, but my common sense guess is the 10w30 or 5w40 are required due to the tolerances with the 2019 and newer Ram 6.7's.


My 2011 does very well with the 5w40 Rotella Synthetic T6 year round in the freezing cold winter temperatures and the days my area has 100 plus degree days. I feel confident my engine internals have stayed very clean and no issues of wear with the Rotella Synthetic T6 5w40.

I'm not sure how many of the 2019 and newer Ram Owners run a 10w30 diesel oil or the 5w40 diesel oil and what oil works best for them. Either way, following proper oil and oil filter change intervals with quality products is very important to have engine longevity.

 

[#18FAN]

Well, all I can say is that the 2019 and newer Ram 6.7 Diesels call for either 10w30 or 5w40. I am not an engineer or scientist, but my common sense guess is the 10w30 or 5w40 are required due to the tolerances with the 2019 and newer Ram 6.7's.


My 2011 does very well with the 5w40 Rotella Synthetic T6 year round in the freezing cold winter temperatures and the days my area has 100 plus degree days. I feel confident my engine internals have stayed very clean and no issues of wear with the Rotella Synthetic T6 5w40.

I'm not sure how many of the 2019 and newer Ram Owners run a 10w30 diesel oil or the 5w40 diesel oil and what oil works best for them. Either way, following proper oil and oil filter change intervals with quality products is very important to have engine longevity.

It's a rabbit hole not worth going down anymore. Seems people want to blame a cold start rating over quality of the oil.

 

[Ruby]

Overall, not my concern as I don't own a 2019 or newer Ram. Whatever the 2019 or newer Ram owners choose to do it's their decision.

 

[johnmyster]

Well, all I can say is that the 2019 and newer Ram 6.7 Diesels call for either 10w30 or 5w40. I am not an engineer or scientist, but my common sense guess is the 10w30 or 5w40 are required due to the tolerances with the 2019 and newer Ram 6.7's.

Deposits. The TSB says deposits. It doesn't take an engineer to read the TSB. The TSB goes on to not only specify grade, BUT ALSO to specify MS-10902 and CK-4.

Deposits, and yet FCA stands by their 15k OCI.