Bob, what is your opinion about dino oil 20w-50 most Vanagon people
believe in and kind of insist in using it? They have of course a good
point that the owner's manual suggested it.

My understanding is the 20W part is bad for the first few miles after a
cold start in the morning. That's when the most wear happens to the engine.
But the number of 50 in 20w-50 is good for the rising coolant temperature
when in bumper to bumper traffic. The Vangon's cooling system is unable
to keep the coolant at a constant temperature in slow traffic or in climbing
long hills, unlike my Passat which keeps its coolant temperature at a
constant at all conditions. I can see the benefit of the 50 viscosity
for vanagons. But 20w part is really bad for cold start and first few
miles of driving first thing in the morning.

What's the solution for this? What's your opinion about this? Or it doesn't
matter any way? Thanks a lot.

David

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