Generally, the thinking is that an engine stored with clean oil is better than an engine stored with contaminated oil. Whether this really matters or not is a subject of great debate. But, since an oil change in the fall is about the same price as an oil change in the spring, the safe bet is to replace now before storage.
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1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
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