[casioqv]

Okay, I guess I'll just throw it on and try it then.

That's a very good point about 80s turbo theory- they really didn't know much about turbocharged passenger cars yet in the early 80s. For example, all of the manuals say you have to idle the engine for ~30 seconds to let the turbo "spin down" when really it stops almost instantly, and any benefit of the idling is probably to keep the oil from coking in the bearings which probably doesn't happen with synthetic even without idling down.