what gear lube for LSD?

[Montius]

Just wondering what gear lube everyone puts in their limited slip diffs. I have got conflicting information from a couple local suppliers. I have some Motul 75w90, and some Mobil 1 75w90, but I have also been told to go with a 75w140 weight. Hopefully swapping in the lsd this weekend, so any info would be great. Thanks in advance

Cris

[1996 328ti]

I've always used Red Line 75w90. Whatever you use be sure to use the one with the additive for LSDs.

[clex2]

I use Royal Purple Max Gear 75W-90 in my 330ti's e24 M6 LSD. Great stuff IMHO, but I'm sure Redline is just as good. I think 75W-140 is for the newer e46 cars as I recall.

[DustenT]

I'm using Mobile 1 75-90 with LSD additive from Napa.

[ZeroG]

I've always used Red Line 75w90. Whatever you use be sure to use the one with the additive for LSDs.

75w90 is what they swear by on Bimmerforums. I have some in my garage waiting for the diff tool to arrive so I can change the fluid.

-Chad

[L84THSKY]

I've got two bottles of that stuff ready to go in my soon to be installed 3.46 LSD. :smile:


I've always used Red Line 75w90.

[H3_2.1-ti]

I just swapped mine yesterday. RED LINE 75W90.

Cheers,