LSD Oil Additives

[NickMav]

Hello, tried searching for this and couldnt find it. Probably didnt look hard enough, anyway i recently bought a 3.73 lsd for my 91 318is. It had an open 4.10 in it and i flushed whatever the po had in it and ran redline 75w-90 synthetic in it no problems. In the lsd i was going to run mobil 1 75w-90 synthetic, my question is do i need to add anything to the fluid since its an lsd? Thanks

[mr ilia]

It should read on the bottle if it lsd compatible.

[dustyperez]

synthetic gear oils ARE lsd compatible and no additive is needed

[jlevie]

But they usually don't have the friction modifiers that you want in fluid for an LSD. I'd use RedLine 75w90, which has the friction modifiers.

[NickMav]

Ok thanks, if I were to run a non synthetic fluid additives would be needed correct? I'm pretty sure the LSD is a viscous clutch setup. Also Mr Ilia what wheels are those in your signature? Those wheels look Greta on your E30

[FredK]

Mobil 1 75w-90 LS has friction modifier additive in it. Just look for the "LS" right next to the oil weight.

If you run non-synthetic you'll probably have to get some additive. The additive is sort of expensive. A tube of Trans X runs around $9. So you're probably better off getting two bottles of the Mobil1.

[mr ilia]

Also Mr Ilia what wheels are those in your signature? Those wheels look Greta on your E30

Thanks,
These are Azev type A reps from Rota. 15x7 et35 with 20mm spacers all around. I like them myself too.