B5M gear diff

[J77MYF]

Just got my gear diff from the US and I'm not sure what grade oil to use. Any advice would be appreciated?

[MiCk B.]

Hi,

Running a gear diff in the C4.2 I'm running a 3k oil.

Gonna start the same in the B5m with a gear diff.

MiCk B. :-)

[J77MYF]

Thanks for that. I'll start at 3k and see how it goes