Hello fellow MBer's,
What motor and gear oils do most of you use? I currently use 20w-50 Max-Life Valvoline and 80w-90 gear oil. I sometimes find the 20w-50 a bit heavy on start-up because my valve train rattles for a few seconds and clears up. No so with 10w-30 or 40. I heard that 85w-140 gear oil is good for diff whine. Is this too heavy?

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1991 190E 2.3 SOLD
1972 911t 2.4 owned since 4/80 300,000+ miles SOLD
1999 C43
Merlin XLM, All Ti, 17.5lbs.