Announcement

Collapse
No announcement yet.

redline 75w 90 or shockproof???

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    redline 75w 90 or shockproof???

    I was wondering what yall suggest?? I have heard shockproof locks up harder and faster. We are talking about final drive gear oil btw.

    #2
    Unless you're talking a fresh, rebuilt diff, I wouldn't run shockproof in a 150k+ mile rear end.

    -Charlie
    Swing wild, brake later, don't apologize.
    '89 324d, '76 02, '98 318ti, '03 Z4, '07 MCS, '07 F800s - Bonafide BMW elitist prick.
    FYYFF

    Comment


      #3
      even in freshly rebuilt diffs, diffsonline suggests redline 75w90 with an lsd additive. we've had the best results with it.
      Dan

      Comment


        #4
        Originally posted by DanGillan
        even in freshly rebuilt diffs, diffsonline suggests redline 75w90 with an lsd additive. we've had the best results with it.
        Why would you add a LS additive to the regular 75w90? The NS varient, maybe.

        -Charlie
        Swing wild, brake later, don't apologize.
        '89 324d, '76 02, '98 318ti, '03 Z4, '07 MCS, '07 F800s - Bonafide BMW elitist prick.
        FYYFF

        Comment


          #5
          yea, i just meant to make sure it has lsd additive in it, not to add more
          Dan

          Comment


            #6
            [threadjack]
            How would shockproof work in a noisy 235k gearbox? Would it quiet it signficantly, when compared to synthetic 75w-140?

            Comment


              #7
              Originally posted by DaN
              [threadjack]
              How would shockproof work in a noisy 235k gearbox? Would it quiet it signficantly, when compared to synthetic 75w-140?
              It would hasten putting it out of its misery.

              -Charlie
              Swing wild, brake later, don't apologize.
              '89 324d, '76 02, '98 318ti, '03 Z4, '07 MCS, '07 F800s - Bonafide BMW elitist prick.
              FYYFF

              Comment


                #8
                So you're saying it would wear it out sooner? Why?

                Comment


                  #9
                  You guys should be running a non-detergent 50W. I have found that works best. :up:

                  Comment


                    #10
                    Originally posted by DaN
                    So you're saying it would wear it out sooner? Why?
                    Shock proof is very light, it's intended for qualifying laps and drag racing, not normal street or race usage. It certainly wouldn't quiet a diff, and I'm sure wouldn't be good for a higher mileage unit.

                    -Charlie
                    Swing wild, brake later, don't apologize.
                    '89 324d, '76 02, '98 318ti, '03 Z4, '07 MCS, '07 F800s - Bonafide BMW elitist prick.
                    FYYFF

                    Comment


                      #11
                      so basically return the shockproof?

                      Comment


                        #12
                        ya, get redline... unless you hate your diff.

                        Comment


                          #13
                          Originally posted by e30 gangsta
                          so basically return the shockproof?
                          I personally would not run it in an older diff, but have not actually tried it. YMMV. I would actually love to see a dyno pull between "conventional" fluid and the shockproof in an e30 diff.

                          -Charlie
                          Swing wild, brake later, don't apologize.
                          '89 324d, '76 02, '98 318ti, '03 Z4, '07 MCS, '07 F800s - Bonafide BMW elitist prick.
                          FYYFF

                          Comment


                            #14
                            don't mean to question your knowledge, but the redline website makes it sound like it is a very high viscocity fluid that prevents breaking gears in high-torque applications. Where is your info from?
                            Michael Spiegle

                            '01 Ford Escape / Daily Driver
                            '99 M3 / Track Car
                            '87 325is bronzit / wtf car
                            '06 Daytona Triumph 675 / Daily Rider

                            Comment


                              #15
                              Originally posted by mspiegle
                              don't mean to question your knowledge, but the redline website makes it sound like it is a very high viscocity fluid that prevents breaking gears in high-torque applications. Where is your info from?
                              Unless this is a different "shockproof" (could be), it's typically a very light gear oil designed for minimum driveline loss for drag racing and qualifying applications.

                              Gimme a link to what you're seeing.

                              -Charlie
                              Swing wild, brake later, don't apologize.
                              '89 324d, '76 02, '98 318ti, '03 Z4, '07 MCS, '07 F800s - Bonafide BMW elitist prick.
                              FYYFF

                              Comment

                              Working...
                              X