113,000 miles, daily driver - go synthetic or not?
10-08-2007, 09:44 PM
#41
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IIRC, Castrol GTX was removed from GM's approved oil's list. http://www.fquick.com/blog/Castrol_Gets_The_Boot/558
10-09-2007, 01:25 AM
#42
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i bought my camaro from this kid i knew with 106K miles and i switched to royal purple 10/40 and my car runs super smooth and even feels like it gained a little power maybe its all in my head but it seemed like it and i dont leak any oil or anything
