GXP fuel mileage

03-03-2010, 07:41 AM

#21

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Quote:

Originally Posted by cacicgtp7

Is that with or without the tune on?

I put the factory tune back in for the trip. DOD doesn't help with city mpg but it is worth about 2mpg on the hwy.

03-03-2010, 09:59 AM

#22

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last night went to auburn hills and back and went 240 ish miles round trip and use 1/8 over half tank of gas.