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  • OIL

    Just wanted to take a poll to see what everybody is running in their 5.7L excaliber.

    I have been running Shell Rotella 15W-40, Both the owners manual and the shop manual wants you running a 15W-40 with a SJ spec.....

  • #2
    RE: OIL

    Royal Purple 15W-40.

    Regards!! Mike
    2007 Ski Nautique 196 Limited/ PP/ Mods
    Ludwig Classic Mapple Double Bass/ Zildjian Overhead

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    • #3
      RE: OIL

      I run Shell
      Life long Nautique guy
      Will ski anytime.
      \"SON WATERSPORTS ROCKS\"

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      • #4
        RE: OIL

        just to let u guys know
        shell just took out the zink in all oils!!!!

        HUMAN BUILT = HUMAN FIXED

        CERTIFIED MARINE/PWC TECHNICIAN
        switchbait.com

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        • #5
          Even in the Rotella?

          Maybe I should stock up at Walmart.
          Previous:
          2011 Super Air Nautique 210
          1994 Sport Nautique

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          • #6
            Originally posted by mf01
            Even in the Rotella?

            Maybe I should stock up at Walmart.

            yeser, make sure it is old stock!

            HUMAN BUILT = HUMAN FIXED

            CERTIFIED MARINE/PWC TECHNICIAN
            switchbait.com

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            • #7
              Originally posted by JUST-IN-TIME
              Originally posted by mf01
              Even in the Rotella?

              Maybe I should stock up at Walmart.

              yeser, make sure it is old stock!
              As of about a year ago, that is not true. The zinc was removed from the multi-weight Rotella (15w40, for example) but was not removed from the straight weights (30w, 40w).

              Has something changed, or were you simply making a blanket statement?
              1990 Ski Nautique
              NWCT

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              • #8
                call and ask them

                HUMAN BUILT = HUMAN FIXED

                CERTIFIED MARINE/PWC TECHNICIAN
                switchbait.com

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                • #9
                  Thats what I did a year ago, and spoke with an engineer at length. If you have some new information, why dont you enlighten us?
                  1990 Ski Nautique
                  NWCT

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                  • #10
                    i heard it from the diesel guys because they run straight oil
                    one of my really good buddies who owns a shop on the east cost

                    so I'm taking his work

                    HUMAN BUILT = HUMAN FIXED

                    CERTIFIED MARINE/PWC TECHNICIAN
                    switchbait.com

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                    • #11
                      Originally posted by TRBenj
                      Originally posted by JUST-IN-TIME
                      Originally posted by mf01
                      Even in the Rotella?

                      Maybe I should stock up at Walmart.

                      yeser, make sure it is old stock!
                      As of about a year ago, that is not true. The zinc was removed from the multi-weight Rotella (15w40, for example) but was not removed from the straight weights (30w, 40w).

                      Has something changed, or were you simply making a blanket statement?
                      I just looked at the bottle of Shell Rotella 15w40 and it states CJ-4. According to Bob is the oil guy it contains 1504 PPM of Zinc. Here's the test: http://www.bobistheoilguy.com/forums...52#Post1056852
                      Previous:
                      2011 Super Air Nautique 210
                      1994 Sport Nautique

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                      • #12
                        can someone provide the short version of why zinc is important in oil......for us uneducated folks

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                        • #13
                          Rotella 15W-40
                          Brandon
                          2006 SAN 210

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                          • #14
                            that was 3 months ago
                            i believe they just dropped it


                            as for zinc
                            it helps on less wear on the cam and lifters
                            the high pressure points of any engine

                            HUMAN BUILT = HUMAN FIXED

                            CERTIFIED MARINE/PWC TECHNICIAN
                            switchbait.com

                            Comment


                            • #15
                              Originally posted by JUST-IN-TIME
                              that was 3 months ago
                              i believe they just dropped it


                              as for zinc
                              it helps on less wear on the cam and lifters
                              the high pressure points of any engine
                              The 15w40 meets the API CI or CJ standard, the straight weights only meet CF. There was a significant reduction in the allowable zinc and phosphorus between the CF and CJ specs. The Rotella 15w40 went to CJ4 over a year ago. According to Shell's website, the straight weights are unchanged and still have the zinc.

                              Read this article if you want to know why zinc and phosphorus are important: http://www.hotrod.com/techarticles/e...ech/index.html

                              Its important to note that all Ford 351w's in our boats are flat tappet motors. The Chevies after ~1996 are all roller, so they can run oils with the lower zinc levels without issue.
                              1990 Ski Nautique
                              NWCT

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