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Synthetic Oil for a 2015 3.0 Diesel

Discussion in 'Dodge Ram Eco Diesels' started by David DeSau, May 25, 2019.

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  1. May 25, 2019 at 1:08 PM #1
    David DeSau

    David DeSau Junior Member

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    Just purchased a 2015 Ram 1500 Laredo 4 x 4 3.0 Diesel- after 17 yrs with a 2002 Ram 2500 4 x d 5.9 L Diesel. After reading the owners manual - discovered the truck will take 5W-30 Synthetic instead of the old 15W-40. I traded my gallons of 15W-40 back to Bi-Mart - and bought Mobil 1 .

    The question is what is the best synthetic oil for this vehicle ? All this is a new experience - my old truck
    went on and on for 17 years - but sounded like a log truck next to this 3.0 Diesel.

    It's like going from a Model T to a Ferrari !
     
  2. May 25, 2019 at 2:11 PM #2
    FXCLM5

    FXCLM5 Senior Member

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    Shell rotella t6, plz read the oil weight change tsb
     
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  3. May 26, 2019 at 8:03 AM #3
    Slevin

    Slevin Member

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    Location:
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    Ram Year:
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    Engine:
    3.0 diesel
    5W-40 synthetic engine oil
    (10.5 qts with filter)

    Must meet spec: MS-10902 (CES20081/CJ-4, which has since been superceded by CES20086/CK-4)

    Certified brands:
    Mopar
    Shell Rotella T6
    AmazonBasics Heavy Duty Diesel

    I just used Shell Rotella T6 because it was slightly cheaper than AmazonBasics at the time.
     
    tidefan1967 likes this.
  4. May 26, 2019 at 9:37 PM #4
    huntergreen

    huntergreen Senior Member Military

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    Your truck does not take 5/30. It was changed due to main bearing issues. In other words, it will wreck your engine. You need an oil rated for a diesel engine.
     
    Last edited: May 27, 2019
    Joes1500, Burla and tidefan1967 like this.
  5. May 27, 2019 at 4:31 AM #5
    crash68

    crash68 Senior Member

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    Rotella T-6 is probably the most popular oil for the EcoD, there's a bunch of trucks that have tons of miles on them using it.
    There are a few people that run Mobil 1(Diesel truck version), Mobil DELVAC 1, Amsoil, and couple other premium oils out there
     
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  6. May 27, 2019 at 4:49 AM #6
    JohnnyMac

    JohnnyMac There's no education in the second kick of a mule. Military

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    Ram Year:
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    Engine:
    3.0 EcoBurner
    If you bought a Ram 1500 Laredo....someone took you to the cleaners! :happy175:
     
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  7. May 27, 2019 at 7:10 PM #7
    Burla

    Burla Senior Member Military

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    All deisel oils were reformulated, crazy what was poorer quality oils are now great, and the great oils are now less then. Browse the pqia page, I'd look at three things, high tbn, high moly, and high cSt. Valvoline and delo used to be your less known deisels, turns out they have good additive packages. Delvac and Rotella are easily the two nest names in deisel oil, not their formula is not as stellar as they once were. These are recent formulas.

    never use 5w30.
     
  8. Dec 1, 2019 at 9:56 PM #8
    FCAEMPLOYEE

    FCAEMPLOYEE Member

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    Rotella T6 5W-40 Full Synthetic. Best darn oil i have ever used
     
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  9. Dec 1, 2019 at 11:21 PM #9
    rroche1982

    rroche1982 Senior Member

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    im running Amsoil 5-40w full synthetic diesel oil
    probably the most expensive option, but i already lost a motor
     
  10. Dec 2, 2019 at 6:40 AM #10
    RAM DRVR

    RAM DRVR Senior Member

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    Engine:
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    This ^
     
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