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Old 08-24-2011, 05:55 PM   #5
thstone
Certified Boxster Addict
 
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,554
I live in LA and use Mobil 1 10W-40 High Mileage and change every 3,000 miles or 4 track days, whichever comes first.

According to Mobil, the "high mileage" version contains extra anti-wear additives and seal conditioners.
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor

Last edited by thstone; 08-24-2011 at 06:01 PM.
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