I have a 300E Mercedes 1989

Asked by innsbruck Jan 12, 2015 at 06:01 PM about the 1989 Mercedes-Benz 300-Class 300CE Coupe

Question type: Maintenance & Repair

I was told that it is not a good idea to switch from regular oil to synthetic, was told it might create leaks and damage the engine.
Your feedback is appreciated.

1 Answer
16,035

bobkat answered 9 years ago

synthetic is always good for an engine. HOWEVER, a high mileage engine that is used to regular oil will likely have high oil consumption if you switch to Full Synthetic. Try a synthetic blend first. It will still benefit the engine, but not cost as much. A common type is 5w-30w.

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