Poor gas mileage
#1
Poor gas mileage
Hey, I have a 03 GM has 84000 miles. I can't get better then 19mpg, I drive 95% highway. I got the the car back in February from my father-in-law. He always bragged about how he would get 25-27mpg when he would come to visit. I changed the fuel filter, air filter, plugs, had BG fuel service done, cleaned the MAF sensor. Had the dealer run a diagnostic that came back good on all tests. I'm stumped any ideas what else it might be? Any help would be appreciated, thanks.
#3
One thing you might want to think about is your driving styles, he might have been easy on the gas. I know with my 97 GM. I am as light as I can be on the gas, and always look at the traffic light head and as soon as I see it change to yellow I let off the gas and coast all the way to the red.
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