Don't wish to start another oil debate, but there are far better alternatives than Mobil 1 0W40 to protect your precious engine. It won't take twenty minutes to search for the posts on the forum, either.
When was the last time coolant was changed? Ate Super Blue is a good choice...I've run it in all my P-car for years.
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JGM
2002 Boxster S
1973 911 Green FrankenMeanie
PCA DE Instructor circa '95
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