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SHIFT_2.5S »
https://forums.nicoclub.com/shift-2-5s-u73442.html
Sun Nov 11, 2007 3:29 pm
Synthetic can be anywhere from 4,000 to 7,500 depending on the quality and brand of the oil, as well as how you drive your car.
Personally, I wouldn't go more than 3,000-3,500 miles without an oil change.