Quote:
Originally Posted by richie_s999
Switching to and from synthetic oil will not harm an engine, it's even sold mixed in a bottle (semi syn)
I ran 15w50 syn. Check the owners manual and just keep within spec
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Quote:
Originally Posted by richie_s999
nothing outside what is recommended in the owners manual is needed for track use on a stock motor with a couple bolt on parts, and synthetic oil doesn't cause seal leaks.
and my E36 had similar bolt ons and saw 2 seasons of autox and track use.
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Perfect, thank you.
Edit: Just noticed you already answered my next question.