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What brand and thickness?

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    What brand and thickness?

    I did some reading and it seems Redline is the brand to get for differentials. Since it is a LSD and I am going to be tracking it every other weekend in the spring-fall. What kinda should I get? Synthetic and what fluid thickness would be good? This will also be me DD, so something leaning a bit more street.

    I also read about royal purple in racing apps because it is thinner and allows for less resistance = a tiny bit more horse power. I might go with that, it all depends on its life cycle change.

    So auto-xers chime in! Let me know what brand, thickness number etc
    ~ Puch Cafe. ~ Do business? feedback ~ Check out my leather company ~

    Instagram: @BWeissLeather

    Current cars:
    ~ '87 325 M30B35 swap
    ~ '87 535
    ~ 01 540 Msport 6spd
    ~ '06 X5 4.8is

    #2
    you need bout 2 quarts synthetic 75w 90 redline and a bottle of friction modifier. If your tracking id say change it out every 2 months or so youll be good to go

    Turbo M42 Build Thread :Here
    Ig:ryno_pzk
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    Buttchug. The official poster child of r3v.

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      #3
      I read that the Diff holds 1.8 qrts Do I just mix the other stuff with the redline then top it off? And can you link me with the friction stuff?
      ~ Puch Cafe. ~ Do business? feedback ~ Check out my leather company ~

      Instagram: @BWeissLeather

      Current cars:
      ~ '87 325 M30B35 swap
      ~ '87 535
      ~ 01 540 Msport 6spd
      ~ '06 X5 4.8is

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        #4
        change it every 2 months? i just now changed the diff fluid in my e30 with valvoline 80-90 and LSD addittive for the first time, ever. i dont think my trans fluid has ever been changed...
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          #5
          Redline 75w90 contains friction modifers, Redline 75w90NS does not. If you use the 75w90 you don't need to add friction modifers.
          The car makes it possible, but the driver makes it happen.
          Jim Levie, Huntsville, AL

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            #6
            I ordered some from a local speed shop. It will be in tomorrow, I am not sure on if it has the friction mods in it or not. I ordered the stuff anyways.

            Thanks for the info on the red line types. Could save me some money if it is the one with it added already.
            ~ Puch Cafe. ~ Do business? feedback ~ Check out my leather company ~

            Instagram: @BWeissLeather

            Current cars:
            ~ '87 325 M30B35 swap
            ~ '87 535
            ~ 01 540 Msport 6spd
            ~ '06 X5 4.8is

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