K&N Air Filters/Synthetic oil.
Ok. I saw in the "sticky where K&N air filters were busted for aiding fuel economy.....I think I also saw where the syn oil was busted.....I got an additional 40 MPT out of my sunfire after changing to syn oil and installing a k&N...Help I am confiused.
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Raz
2005 Pontiac Sunfire
1991 Toyota Celica
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