Quote:
Originally Posted by j.fro
+1
And use Castrol full synthetic
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Without going into a long rant, the term "full synthetic" means different things to different people and world markets.
In seriously warm SoCal low desert, perhaps consider Redline 10W-40. In high desert with occasional frosty mornings Redline 5W-40 would be a decent choice. (Properties differ appreciably only at truly cold start-up.) Neither is cheap.
There are lots of good oils. I love "German Castrol" (a heavy 0W-30) for my GTI, but most would say the claimed HTHS viscosity of around 3.5 or 3.6 is a little low for the 986.