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LAP1DOUG · 03-15-2012, 04:46 PM

I ahve always used Valvoline Synthetic 75w90 in my gearboxes / differentials, and that's what I used recently when I changed the 986 gearbox oil. It is working great as usual.

03-15-2012, 04:46 PM	#5
LAP1DOUG Registered User Join Date: Aug 2011 Location: USA Posts: 414	I ahve always used Valvoline Synthetic 75w90 in my gearboxes / differentials, and that's what I used recently when I changed the 986 gearbox oil. It is working great as usual. __________________ Kippis 986S 991S Van Diemen RF97