my friend just bought a '94 and the guy has been running synthetic, is it ok for him to switch it to good old dinosaur oil ? or will it mess something up ?
thanks for the info ppl

 

bump!! fd, oil free, awaiting advice

 

Stay with synthetic. Less friction, lower temps, better for the turbos.

 

Yeah people always argue over synthetic or non-syn issue. Me and a bunch of other people I'm sure have noticed lower degrees in temperature with synthetic. Even if its just one or two degrees... it's STILL a difference.

Jeremy

 

yes!!~~~ go synthetic!!~~ I do that too.... it feels better!!
I used Mobile 1 20w-50....

 

There's no harm in switching back to dino oil from synthetic, to answer the original question.

Personally, I run a good grade of "regular" oil (Castrol GTX) and change often. I've never seen enough benefit to running synthetic to justify the higher price. You'll blow an apex seal or pop a water seal LONG before you have enough bearing wear to cause a problem.

Dale