Stock 32" tires, 3.73's, 4x4, LQ4 is getting me about 11-12 in town and 13-14 highway.

Ill be going back to New era on the 25th. Im having Mike turn the v4 off so coming home it will prolly be down a bit.

right now ripping around town i get about 13.5-14 mpg. again i beat on my truck all the time

12 city and 14 highway with 3.73 gears and 5.3 with Magnacharger and 4l60. About to get it going again after 4l80 conversion so may change some.

I'm up to 14.5-15 towing down the interstate 75-80mph with the 6.0. Also up to 14 around town now.

Best MPG on a long trip was 14.7 highway. That was using math not the computer. City mileage, I don't know, I think maybe 6 mpg
2.3 liter twin screw, 8psi, mild cam, 5.3 liter, 2600 rpm Circle D, 3.73 gears, crew cab 2wd, 22" wheels.

What's your setup?

My overall average is 13.5 and I usually get 15.5-16.5 cruising on the highway at 80mph with 3.73s with my 6.2/6L80e Trick Turbo 76mm stage 3 kit in my Silvy.

I average 9.8 in my truck truck thats with a 5.3 and e-85

Running pure gas I get around 12.5-13 in town and 19 on the hwy.

Right now I'm getting 13.5 hwy.

Running a KB Racing turbo kit on my 4.8L

I just bought the AutoCal EFI Live tuner from BlackBear and am waiting for a new tune that's a little leaner up to 2-3 psi.

The truck smells rich right now. I should be able to go leaner without any knock. I've run 89 octane with the boost and no knock.
I might end up going with an intercooler to cool things down a little, not sure yet.