Thread: Fuel economy
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Old 12-29-2012, 08:23 PM   #11
auto180sx
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Join Date: Nov 2010
Location: Lexvagas, KY
Posts: 549
My Ride: '02 Steel Blue 330Ci
Tire pressure, file filter, and air filter play a big role. Also check your lower intake boot because its probably cracked. They aren't to expensive (@ about 15 bucks from your local dealer) so just replace it if you haven't yet.
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