Performance Package LSD gear Oil?
my initial instince is to refill the diff with castrol saf-xj 75w-140 diff fluid. Is this do-able? Is there something more appropriate that you'd recommend?
Also, one last thing. I have seen 2 little flick / stone guards on the rear bumper / fender of some C63s and some without. They are the 2 pieces where the rear bumper meets the rear fender. Is this an optional extra?
Cheers for the help. This is a great forum!!








I think the rear wheel well stone guards are European.
You can find them aftermarket if you search around a little. Sorry I don't have a source for you off hand.
https://mbworld.org/forums/c63-amg-w...outcome-2.html



