Gas Mileage for GMC 1500/2500 with Vortec Max 6000?

[KN]

What are kind of gas mileage are you guys getting with a Chevy/GMC 1500/2500 4x4 crew cab with the Vortec Max 6000 (the 345 HP 6000 not the 300 HP 6000)

Thank You Kirk

[mikes280]

i had the 300 and it sucked 11.5 in town so i hope the 345 is better i got a duramax

[tblrklakemo]

the 345 horse (LQ9) is only available on half ton models. I am in the 14 mpg club around town with mine.... a mild right foot. Dont ask what the mpg's are pulling the boat.

[Boomer35]

i have a 2004, 2500 chevy ext cab 4x4, around town i get about 11-12 gpm, and on the highway no better than 14 mpg, its got the 4.10 gears, and with the boat, i get about 6 mpg

[ReggieRaft]

Duramax is a solid 19 around town and 13 at 75 mph towing a 35 ligthning full of fuel highway.