i checked today and im only geting 12.6 mpg with 3 inch lift and 31s full tune up about a month ago iv cleaned the tb and i have the air tube from rustys to i have a crack in my ehaust manifold would that cause this

 

Thats about normal, I get from 12-14 city depending on traffic and how im driving.

 

with 31's i get between 9 and 10 mpg.

 

my last tank was 13.7 mpg

 

I've got the same setup as you except with a full exhaust and I'm seeing an average of 11 to 12.5 MPG. It sucks, but I guess that's the nature of the beast. You should consider getting yourself a bike for the warmer months to compensate man, it help a lot.

 

Thats a big low, Lil throttle happy are you?

 

dan i thot i could get like 15 ha

 

Install one of these.....keep the needle between 15-20....u'll get better mileage.

 

Not at all. Im thinking it must be due to the cold weather. I never had my 31's on during summer, and it wasn't nearly this low before..

 

I saw a HUGE increase in people suggesting this right after I saw a certain TV program suggest it.

I lauged when I saw it on TV, and I have to laugh now.

If you need a gauge to teach you how to drive to get better gas mileage, you really need help in other places as well.

 

I got 31x12.5 with 15x10 wheels and I avg 13 mpg city. The extra 2 inch has to hurt plus its heavier. You could prolly brings urs up cleaning and freshening some parts.

 

A lot of the time its the O2 sensor before the cat. Even if you have no CEL...Tj

 

Yeah I plan to replace it once the weather gets a lil nicer.

 

Well with 4.10 gears,4.6 inch lift, and 31s my 99 is getting right at 14mpg I'm sure if my wife drove this daily it get way better but she hates climbing in with no side steps so it gets what it gets and Im happy about it.

 

Your post is really helpful to the OP, I'm sure. I just made a suggestion that's as good as anybody else's.