just curious what everyone else is getting in theirs. not strictly for 6.0's only just curious how mine compares lol. i just filled up and hand calculated i got 14.1 which is pretty decent cause i usually get anywhere from 13.7 to 14.4 and i dont drive slow. If you got any mod note em down! my truck is in my sig

 

swapped one in my tahoe, weighs 6100 with wheels and stereo, bb tune, long tubes and muffler with 4" pvc intake and my best highway is 19.7, ive been averaging 18.5 the last few months with winter gas.. city im prolly around 12 with the converter and heavy wheels, havent checked city with my stocks on lately

 

I average about 15.5-16 mpg city driving and 18.5-19.5 mpg hwy (@75-80 mph). I've gotten as good as 21-22 mpg (@65-70 mph). Seems like it goes down a couple mpg if I run anything less than 91 octane. I have a 2wd LQ9 on 265/70/17s and 3.73s.

 

i average 14-16 on my daily commute.. depends on how late i wake up

but on highway it has gotten 24 sevearal times.. but 22-23 are more common.

LQ4, isky 215 cam, 4L80E, 3.42s, 265/65/17, turbo

 

I get horrible MPG, truck sounds too good @ WOT. A few weeks ago on a trip to Waco and back the truck got 23mpg.

 

haha!! how many times a day does it see 6000rpms?

 

It sees 6k rpm's at least 3 times before I get from house to the highway. Id say 6k at least 10 x a day.

 

Hmmm , glad to hear some decent numbers on HWY.

My van gets 12-12.5 , short commute to my current job site , haven't had enough hwy time to calculate . All stock , going to do a tune soon.

My truck is never driven easy enough to see lol , just sounds too damn good !

 

16 if it's all highway and the stars are aligned properly :^P

 

what you driving?? i get that towing haha