180 Degrees F is normal oil temp. Oil breaks down at 212F. On an aircooled
motor if temp is higher than normal check to make sure  the engine compartment
is sealed  hot air from the cylinders should not be  entering the engine
compartment. You need fresh  air from the side scoups. Improper timing or fuel
mixture can also cause excessive oil temp. Gene Berg has excellent info in his
parts cat. on cause and cure of  overheating.

Dieter Thiessen
84 vanagon