Hey yall...for some reason i only get about 250 miles per tank..i got y-pipe, muffler, intake....and i barely floor my car...can anyone tell me why or might be why? thanks!!

 

how old are your spark plugs?

 

What kinda gas you put in your car? 93 octane burns faster. Change your fuel filter and check your sensors.

 

I get about the same miles on my car also but the only thing different is that I am constantly flooring it and its also a auto. I use 92 octane here which is the highest unless I get the 100 octane which very very few places have that gas.

Chris

 

Miles per tank is not a meaningful measure of fuel consumption. Miles per gallon is. Make a careful record of gallons bought and odometer reading at each purchase. After five or six fuel fills you will have an accurate number.