I usually get around 15 town and 20 highway...if I add Lucas fuel system cleaner I can get about 2-3 mpg better than that.

 

I get on average 15mpg (US). I'm heavy on the pedal for the most part, and that is a mix of highway and city driving. I tend to get better gas mileage with my Shift Plus turned off since it is not want to go as high into the power band before shifting. I can get 19mpg when I am really nice to the pedal, but that does not tend to happen much. Right now I am averaging 10-11 mpg if I am lucky because I have been using the 4-wheel drive with the snow, I can't believe how much more fuel it eats up.

 

Hey What;s up! I have a 1987 2.8 fuel injected s-10 blazer. With new spark plugs only, I average 15 MPG.

 

94 4.3L CFI 20 gallon tank 135,000 miles, 400 miles since last tuneup and oil change just calculated it again last week 20 MPG with a city/highway mix driving 30 miles each way for work, And I don't exactly baby the throttle although i'm not hard on it either.

 

my 97 gets between 20 and 25 mpg, i have a k&n air filter and tune up was done in the middle of the summer. i also have a k&n oil filter and castrol syntec blend in the engine. mine will get up and go in a flash, but when i do the fuel will suffer. but lately it has been acting up so there is no telling what it is doing now.

 

i also get about 225 a tank

 

i have a 95 LS with 81k on it, and a tru-dual exhasut packag on it, don't really calc the mmp, but in the summer, in 2wd i get roughly 190-201 miles per tank, and now, in the winter in 4hi, i get about 170-180 if im lucky.

 

Miles per tank means nothing as a measurement unless you routinely run the tank to empty. MPG is the only way to figure it.