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2009 fit sport auto w/5000 miles. I do 80% highway driving around 70 mph. Mileage was a little dissapointing at 37 mpg according to the computer. It dawned on me one day to check the tire pressure, yup, 29 psi. I filled to 36 psi and mpg came up to 41.5 (37.7 calculated). I am now trying 45 psi out of the 55 psi maximum rating for the dunslops. I find the last half of the tank lies a little bit as it is never as many miles as the first half. Also i dont think going up hills kills as I have 2 big ones on the free way--its the down that kills me. I spend gas going down the hill to keep up to speed (wind resistance at 70 mph). If i let it coast in 5th the mpg even out quite a bit.
Last edited by yoda_97; 07-25-2009 at 10:40 PM.
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