mpg?

[1987ss]

i have a 99 tahoe with 125 k on it and it gets 10-11 mpg.. what do others get with a 5.7.. tires are stock no dual exhaust recently tuned up too. not driving it hard eithor.. Thanks people!!!

[tgwright]

Since I bought it new in August, '99, my ,99 4DR 2WD has gotten 15MPG in town and 20MPG on the highway. When towing a 4060 lb. boat and trailer on the highway it always gets 16MPG. It now has 123,000. It is so consistent that I can estimate within a half gallon how much it will take when I fill it up, assuming I remembered to reset the trip odometer. The 4WD models should get about 1MPG less, I think.

[1987ss]

thanks do you know any thing i can do to make it better? i changed plugs,cap rotor ,wires...

[muff34]

Originally Posted by 1987ss

thanks do you know any thing i can do to make it better? i changed plugs,cap rotor ,wires...

fuel and air filters ?

[1987ss]

air but not fuel im a get on it!!

[usamarshal]

Yeah, I get about 14 city with mine. Probably much better if it was on highway. Thats with a bad lower intake gasket too...lol...I freakin hate replacing those things..such a pain in my a-hole. I wonder if I could trade it in for a Ford Expedition?....