What he said.
Use a good mineral 80W90 / 85W90 or even 85W140.
However, start budgeting for an upgrade to the front diff centre.
Printable View
Thanks for the info, it's appears I'm misinformed on a number of fronts....
Back to lurking
Looks like mine did 40'km ago, still going. :cool:
FWIW,the rear diff in my D2s,were always dirtier,and had more filings on the magnet than the front.
I recon the rear does more work than the front.