1999mustang2000

If i did it correctly i get like 6.6 mpg. I have full bolt ons, 4:10s and a high stall torque converter everybody says the torque converter makes a difference but i dont see a difference since its been installed

amoosenamedhank

14mpg mixed freeway and city... My intake manifold setup sucks and I really think it's boning me for fuel mileage... that or I can't keep my foot out of the throttle.

lilcrate

You probably didnt do it correctly, or you have something majorly wrong. If it were only 6.6 you could probably watch the gauge go down with acceleration. Last I checked I got 24 mixed driving.

Fizzics Boy

I doubt you did it right. 6.6 mpg you would be out of gas in 100 miles. Anyways, I average 21-22 mpg according the app I have on my ipod which logs total miles and total gallons that go into the car. I have 4.30s and do a mix of city and highway driving.

1999mustang2000

my driving is mixed freeway/city driving to and yea that sounds about right i get about 100 miles to the tank no joke and all my check engine light is showing is an oxygen sensor code im pretty sure my egr is sticking also but i wouldnt think that would hurt mpg that bad

teej281

I want 4.30's lol i get about 18-20 depending on how nice i am to my car. lol

1999mustang2000

My car temp hand quit work, well sometimes it'll work and other times it wont im not sure what the cause of it is but it seems like every since thats been happeneing the car has been getting alot worse mpg the car didnt used to be this bad on gas

DreamerGT

get about 23mpg mixed driving right now.

Mustang3GT07

IDK how the hell you get 6.6mpg? I get 9mpg with my setup n power numbers.

machracer11

I get about 21 mixed driving but a nice 26 on the highway