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What oil do you use in your MC?

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  • #31
    Originally posted by MattsCraft View Post
    ^^^ This is correct - I use Mobile 1 - 5W30 full synthetic

    Here is where you can get an electronic copy of the Ilmor Manuals


    • #32
      Rotella T-6. I have read nothing but good things about it on BITOG so I use it in my small 4-stroke engines, my chevy 1500 in the summer, and in the boat.


      • #33
        Valvoline premium blue 15w40. It was rated as the best non synthetic oil and one of the best overall in a diesel oil study.

        Price API Performance Category
        $/gal. Oil # Brand/Description My Estimate Actual
        9.98 1 Cummins/Valvoline Premium Blue 15W40 CI-4 plus CI-4 plus
        17.36 8 Shell Rotella T Synthetic 5W40 CI-4 plus CI-4 plus
        21.89 12 Cummins/Valvoline Premium Blue Syn. 5W40 CI-4 plus CI-4 plus
        9.98 13 Pennzoil Long Life 15W40 CI-4 plus CI-4 plus
        10.88 14 Chevron Delo 400 15W40 CI-4 plus CI-4 plus
        35.00 20 Red Line Diesel Synthetic 15W40 CI-4 plus CI-4
        10.36 2 NAPA Universal Fleet Plus 15W40 CI-4 CI-4
        25.70 10 Amsoil 5W40 CI-4 CI-4 plus
        13.51 15 Caterpillar DEO 15W40 CI-4 CI-4 plus
        12.68 16 John Deere Plus-50 15W40 CI-4 CI-4
        19.99 18 Lucas 15/40 Magnum 15W40 CI-4 CI-4
        9.68 3 Mobil Delvac 1300 Super 15W40 CI-4 plus CI-4 plus
        7.68 5 Wal Mart Super Tech Universal 15W40 CI-4 CI-4
        9.52 6 Castrol GTX Diesel 15W40 CI-4 CI-4
        9.52 7 Motorcraft Super Duty 15W40 CI-4 plus CI-4 plus
        9.99 19 Pilot Premium HD 15W40 CI-4 CI-4
        12.00 21 LiquiMoly Diesel Special 15W40 CI-4 CF-4
        Ho-Hum (least favorite)
        10.96 4 Shell Rotella T Triple Protection 15W40 CJ-4 CJ-4
        27.55 9 Amsoil Premium Synthetic 5W40 CJ-4 CJ-4
        10.80 11 Castrol Tection 15W40 CJ-4 CJ-4
        12.99 17 Chevron Delo 400 LE 15W40 CJ-4 CJ-4


        • #34
          Originally posted by Footin View Post
          Rotella in the Boat, Mobil 1 in the cars.
          Exactly what I do. Can't go wrong there.
          2010 X-15
          SOLD 1994 205
          2011 Pathfinder
          2016 Ford Flex
          3 kids, a wife, and a boat dog
          1 kid in college


          • #35
            Used mobil one 15w50 full synthetic yesterday, jug says it has extra zinc for "high performance engines" plus it was 13$ for a 5 qt jug at walmart, I'm still happy about that deal!