Just my opinion, but I wouldn't suggest running with 0W40 for a track day...too thin for proper lubrication and subject to heat shear. Have your mechanic fill with 5 or 10W40. One of the fellows that runs in our region cooked his engine by running M1 0W40.
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JGM
2002 Boxster S
1973 911 Green FrankenMeanie
PCA DE Instructor circa '95
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