I have a 2020 Ram 1500 with the new Gen 3 EcoDiesel engine. The owners manual is contradictory, and I want you guys' opinions on this.
Page 369 states, "The manufacturer recommends engine oils that meet the requirements of FCA Material Standard MS-10902, and that are API CJ-4 certified."
On page 370 I read, "We recommend you use 5W40 synthetic engine oil such as Mopar or Shell Rotella that meets FCA Material Standard MS-10902 and the API CJ-4 engine oil category is required."
Then on page 424 it states, "We recommend you use 5W40 synthetic engine oil such as Mopar or Pennzoil Platinumn Euro that meets FCA Material Standard MS-12991 and the API SN engine oil category is required."
An FCA forum representative claims on the Ram forum that the MS-12991 is the correct spec for this engine.
At my local stores, I've found 5W40 Shell Rotella T6 which I believe would meet the MS-10902 spec just fine, but I can't find any oil anywhere that meets MS-12991. The dealership sells it for over $10 per quart. They've quoted $250 total for oil and oil filter change.
What would you guys do? This truck has 1,000 miles on the odometer and my goal is maximum longevity.
Page 369 states, "The manufacturer recommends engine oils that meet the requirements of FCA Material Standard MS-10902, and that are API CJ-4 certified."
On page 370 I read, "We recommend you use 5W40 synthetic engine oil such as Mopar or Shell Rotella that meets FCA Material Standard MS-10902 and the API CJ-4 engine oil category is required."
Then on page 424 it states, "We recommend you use 5W40 synthetic engine oil such as Mopar or Pennzoil Platinumn Euro that meets FCA Material Standard MS-12991 and the API SN engine oil category is required."
An FCA forum representative claims on the Ram forum that the MS-12991 is the correct spec for this engine.
At my local stores, I've found 5W40 Shell Rotella T6 which I believe would meet the MS-10902 spec just fine, but I can't find any oil anywhere that meets MS-12991. The dealership sells it for over $10 per quart. They've quoted $250 total for oil and oil filter change.
What would you guys do? This truck has 1,000 miles on the odometer and my goal is maximum longevity.
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