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Originally Posted by H.O.T. Diesel  Good thing to remember is to watch your tire pressure. My mileage dropped almost 1mpg after getting my tires rotated. They had let the back tires down to 60psi and the front down to 45psi for a better ride. Pumped them back up to 70 today, i should be getting 19+ again. |
I also have the 08 cc stock reg box, im around 16 mpg around town,manual calc after the last 2 fill ups and dead on with comp. took a ride up the pa turn pike and reset instant econo and after about 15 miles it settled in at 21.5, are you finding the same and should i expect to get better milage as the truck breaks in?