http://www.fueleconomy.gov/feg/findacar.htm

EPA rating shows 15 city, 21 highway & 17 combined on premium gas.

Doesn't matter what improvements you make if you drive it like you stole it. Driving habits can make up to a 10% difference in mileage.

Low friction tires and the correct oil can make small differences as well.

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A.S.E Tech A1,A6,A7,A8 & MVAC 609 + EPA 608

Unless stated otherwise, any question I ask is about my greymarket 1985 380SEL.