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I understand that it is hard to believe i get that kind of mileage but i have no modifications done to the engine besides that. thanks alot nim81 ill check and see if there is any oil in there tonight. thanks for the help.
I am getting about 9.5 around town, and thats with a easy foot... I have checked my plenum, and that seems fine. I am going to go ahead and do a full tune up: cap, rotor, plugs and wires and see if that helps. I am also using about 3/4 a quart of oil about every 1500 miles, but the trucks doesnt leak or smoke... And it runs like a champ...