Gasser MPG's?

[Schwind]

My 99 get between 18 and 20 mpg. I have even seen 22 a couple of time but its rare. It has a 5.3L with 3.42 rear that’s at 65 to 70 mph. And some in town driving. It’s not to bad with a load in the bed but don’t ask it to pull anything.

 

[Franko914]

5.3 Flex Fuel Avalanche 4WD: Hand calc 19.5 to 20.0 mpg on the highway, cruise control set for 60 mph, 3 adults + 2 children, 450 lb+ gear in pickup tray, cold tire pressure at 40 psi. Lifetime for truck is 16.3 mpg (we do a fair bit of city driving).

 

[towdog]

My 09 gets 14 mpg around town , 20 hyway. Getting a diablosport programmer next wk to see what that does to the mileage

 

[496 BB]

Driving down hill with wind to my back, going 10 under posted speed limit, and all stars are aligned correctly I can almost get 8 in city

I have however managed to get 16 on highway between Virgina and thru NC going down I77. Not a fluke either as Ive done it two years in a row now. Bout shit myself when I seen that. Norm on freeway is around 13-14mpg.

 

[GM Guy]

i have a 97' Z71 with a 5.7 Vortec hand calculated i get 10.185185 MPG mixed driving, with a few go fast goodys and a noise ordinance problem

Easy on the go pedal bud!):h

we can squeeze 12 mpg towing out of dad's 98, but that is 2wd manual. trailer fairly light.

 

[plstokes]

My 6.0 gets around 12 in town and 15 on the highway on a good day. My Dad has a '99 1500 5.3l and he gets around 19-20 highway driving, not sure around town. A guy I work with swears up and down that he gets 22 out of his 5.3 CC 1500 but I'm not sure about it.

 

[Ed HD]

Our hired-man says his 2k 1500 5.3L ECSB gets 18-19, which I expect.

Our 2002 suburban with the 5.3 and a K&N intake gets 15-16 mpg on regular and 12-13 on E85 (please keep that out of this thread, I'm not a huge fan of it either)

 

[btfarm]

Had a '00 2500 SCLB with 6.0/4L80. I got around 15-16 mpg highway. Wife's '02 Tahoe with 5.3/4L60 got around 20 mpg highway (if I was driving... not close if little leadfoot was). Her '07 Tahoe 5.3/whatever is about the same as the '02. Just for comparison, my '03 8.1/A got 13 mpg highway on a REALLY good day. That's why I'm driving a Duramax...

 

[DieselCash]

My wives Tahoe gets 18.0 in the city, Around 20 to 23 on the highway. It really depends on who is driving.

 

[GMCYA]

My 01 5.3 ec sb 4x4 got around 18 on the hwy. I added a 6" suspension lift, 3" body lift, Chrome wheels with 37" BFG mud tires, 4.56 gears, efi tuned and ended up getting 11 mpg on a good day with the wind blowing just right. Average daily commute was 9. Traded it on the Dmax. Couldn't be happier.