Re-gearing an 03 SS?
04-01-2013, 04:10 PM
#11
I get far better than that on the higheay... but about 14 mixed. Most driving is not highway though. I would go through and check/clean what people suggested to see if there is any improvement.
Also, slow down just a tad... going 70 MPH with it closer to 2k will make a huge difference in mileage. Trust me it will hardly take you any longer to get places.
Also, slow down just a tad... going 70 MPH with it closer to 2k will make a huge difference in mileage. Trust me it will hardly take you any longer to get places.
04-30-2013, 03:42 PM
#12
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When I picked up my 03 I just bought, with 81,000 miles. Driving all interstate @70mph, I was averaging 2100 rpm, and 16.5-17 mpg. That was with 25psi in the tires as well. Only thing done to it was a CAI, the rest is factory. In town I am averaging 12.5-13 with the occasional romp
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