Pitch black oil

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  • nando
    Moderator
    • Nov 2003
    • 34827
    #16
    mine was black last time I changed it at 3k.. my SI lights were almost all green too. maybe it's just cheap ass oil?
    Build thread

    Bimmerlabs

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      • e30Matt
        R3V Elite
        • Dec 2003
        • 5077
        #17
        15W50 Mobil 1, every 3.5k, comes out looking like honey. :) Got to love a clean engine.

        "See, we're adding a little something to this month's sales contest. As you all know, first prize is a Cadillac Eldorado. Anyone wanna see second prize? Second prize is a set of steak knives. Third prize is you're fired."

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          • Old'n'Slow
            E30 Addict
            • Nov 2003
            • 436
            #18
            LubroMoly Molybdenum Disulfide synth-blend oil, 10W-40 goes in brown because of the moly...comes out slightly darker...

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              • Sean
                R3V Elite
                • Oct 2003
                • 5793
                #19
                Originally posted by kencopperwheat
                Originally posted by Sean
                I'm using 15w-50 Mobil 1 in the 87n 325, and I checked it today. It's brown, but not black. Has close to 3,000 miles on it I think.
                15w50? Damn, that's thick. I use 5w30 in the winter.
                5w-30 was WAY too light. I tried it. 15w-50 is perfect.

                Take a look at Mobil 1's website, they list 5w-30 as working best at like -40 to 30 F in the E30's. Whereas the 15w-50 works at -5 up to around 90 I think.

                It quieted down a bit too.

                bmwguru suggested I run 15w-50, and I'll be stickin with it. ;)
                - Sean Hayes

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                  • AndreNY
                    Banned
                    • Oct 2003
                    • 632
                    #20
                    CASTROL GTX 10-40 all year round, and i change it every 2K

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                      • kencopperwheat
                        King of Kegstands
                        • Oct 2003
                        • 14396
                        #21
                        I run 5w30 in the winter months and I switch to 10-40 in the summer. 15w50 is great if you have a high performace engine and you're pushing it a lot, but it kills your gas milage for daily driving.
                        Originally posted by Gruelius
                        and i do not know what bugg brakes are.

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                          • The Sly
                            Noobie
                            • Oct 2003
                            • 31
                            #22
                            Hey guys ..Check what the BMW dealer recommends for us...where ever we are....

                            Up here in the cold CANADA climate they use 15w40 in the winter and 20w50 in the summer ....

                            So i use the same ..actually i only use 20w50 cause i don't drive them in the winter...

                            Sly

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