Having a recurring oil leak (maybe have to replace pump?) but not sure what type of oil is best to use to top off?

Asked by shay2016 Mar 10, 2016 at 12:07 PM about the 1992 Mercedes-Benz 300-Class 4 Dr 300E Sedan

Question type: Maintenance & Repair

Our mechanic suggests shell rotella (diesel) formula.  even though engine is not diesel.  says for 1992, this was recommended.  also he recommends to avoid synthetic oil.
i'm confused.

1 Answer
16,035

bobkat answered 8 years ago

If you already have a leak - it will leak even faster with Synthetic because it is a thinner oil. His suggestion might be a temporary lessening of the problem - but it will definitely not fix it. Only a new seal and/or pump will resolve your issue.

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