diff fluid?

[widebody_bimmer]

hey guys I was just wondering what type of diff fluid you all are using...its about that time to change it and wanna get something that doesn't make the diff too noisy and is a good protectant for LSD.... any ideas??

TIA

[Paperboy415]

75w-90 Mobil One Synthetic...

Didn't really notice any difference from 80w-90, but that's what I'm running...

[widebody_bimmer]

what originally came in these cars....Synthetic?

[BadR1]

you need to add friction modifier if you have a lsd

[widebody_bimmer]

friction modifier?

[widebody_bimmer]

so anyway I need 75w-90 with some sort of friction modifier and I'll be golden then right.....sorry to sound like a noob but I have personally never changed the diff fluid in my ride....don't wanna FUBAR things no what what I mean :D

[BadR1]

I friction modifier you can get it from any parts store or dealer.

[BadR1]

you may want to find the right tool for the fill and drain hole

[cop]

On my car I'm using 75w90 fluid from Redline Oil that contain the friction modifier.

[widebody_bimmer]

oh so you can find the fluid with the friction modifier.....sweet that would help so hows the redline compared to mobil 1?

[Kevin325i]

Mobil 1 states on the bottle that it is compatable with clutch type limited slip units. I've used it for 3 changes on two different differentials and never heard a chatter.

[widebody_bimmer]

Mobil 1 states on the bottle that it is compatable with clutch type limited slip units. I've used it for 3 changes on two different differentials and never heard a chatter.


thats good to know so it sounds like either mobil 1 or redline will be fine in the LSD unless there is different kinds....thanks to all who replied :)