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    Motor Oil?

    I have a 1987 325is. it has nearly 160,000 miles on it, and i was wondering if anyone recommends a good oil to use on it. it tends to burn a little every month or so.

    #2
    Mobil 1/Lucas/Redline.. any of those

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      #3
      Just use some 20w 50 Castrol or Valvoline

      Don't switch to Synthetic as suggested above
      BimmerHeads
      Classic BMW Specialists
      Santa Clarita, CA

      www.BimmerHeads.com

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        #4
        ...And welcome to R3V
        BimmerHeads
        Classic BMW Specialists
        Santa Clarita, CA

        www.BimmerHeads.com

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          #5
          I'm still struggling with this decision.

          20w-50 Regular or 15w-50 / 15w-40 Synthetic?

          Now I've heard that you should not use Sythetic on any car with high mileage (over 75k) because the detergents it has in it will clean the gunk in old seals and cause them to start leaking.

          I recently replaced almost every possible seal on my engine and after doing so would it be kosher to use Synthetic?? I've been using Royal Purple for some time now in my Mitsu and I love it. I would like to use it in the bimmer if warranted.

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            #6
            I run 15W50 Mobile 1 Synthetic in my car, however I replaced all the gaskets and seals.

            On a stock motor I would stick with 20W50 Organic Castrol GTX

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              #7
              Originally posted by James Crivellone
              On a stock motor I would stick with 20W50 Organic Castrol GTX
              No need to using anything else.

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                #8
                what are ya'll thoughts on Mobil 1 15w-50 extended performance synthetic.

                I recently had to use this b/c the store ran out of the regular synthetic stuff. Are there more detergents in the extended performance?

                BTW I switched to synthetic everything on my 325i with 124K miles and haven't had any trouble with leaks. Just a few drips here and there.
                Renting my rear wheel bearing tool kit. SIR
                http://i25.photobucket.com/albums/c5...ps6debf0b0.jpg

                Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

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                  #9
                  I use synth on the M42, and I'm pretty convinced you should.

                  But this is an M20 thread, so I'll go back to my happy M42 corner.
                  The BMW 318 is back. With a vengeance.

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                    #10
                    can the m42 use 20w-50?
                    ///Alpinweiß II 24v 91' 318is, Alpinweiß III 99' 323i, 04' Yamaha R6 SE for sale, 00' VW GTi, 83' El Camino BURNED, 01' P71sold, 92' Miatasold

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                      #11
                      yeah it can.

                      I use cheap oil.
                      BEERTECH

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                        #12
                        20w-50 Castrol GTX, Havoline, and Chevron Supreme are excellent dino oils for the money! Good for upto 5K mile oil change intervals.
                        "I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj

                        85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
                        88 M3 - LACHSSILBER/SCHWARZE
                        89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
                        91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER

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                          #13
                          I use mobil 1 15w-50 in my 85 eta with 240k for about 30k, still good, and I'm using it in my 90 325i with 140k. Gives me piece of mind when I'm beating the shit out of the motor. If something leaks, replace the seal.

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                            #14
                            Originally posted by hamann318is
                            I use synth on the M42, and I'm pretty convinced you should.

                            But this is an M20 thread, so I'll go back to my happy M42 corner.
                            You have to change the OIL on those new fangled things? Shit
                            BimmerHeads
                            Classic BMW Specialists
                            Santa Clarita, CA

                            www.BimmerHeads.com

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                              #15
                              Originally posted by hamann318is
                              I use synth on the M42, and I'm pretty convinced you should.

                              But this is an M20 thread, so I'll go back to my happy M42 corner.

                              what weight???

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