Low MPG
 

Hey everybody... I have an LB7 Duramax with about 130,000 miles... I don't really know what MPG's i was getting before some upgrades, but i'm really not getting good MPG now...

I have 35" tires, 8" lift, and Superchips tuner on Mileage XS setting... I'm getting around 12-14 MPG... I would think it should be around 17-20... Any thoughts???

I've checked for bad break calipers and all my fluids... Just FYI, sometimes i do pull away from gassers at red lights :w2:

with that kind of lift and tire you're going to get bad mileage, I have a 6'' lift and am sitting on 40''s and i get 12-15 in town and 20ish on the interstate

wow... yeah, that's about where i'm at with MPG too... oh well, it's fun to drive:pca1:

Just be glad you are not getting 8.5 mpg like my last tank without any pulling was!

Have you changed your fuel filter recently? That may be the issue. I have an 8" lift with 37's and I've been getting 16-19mpg. Just an option.

Iv'e got the filter in the back seat... :w2: as soon as i stop putting in 35 hours overtime a week, i'll change it and see if that helps me out any...

How do you drive it? Like the little old lady or do you baby it?

hahaha... do i baby it? negative son! lol I understand why i get bad milage when i put it to the floor... my concern was when i'm open highway or driving like an old man...