Fuel mileage 1500 vs 2500?

[Yeager]

I am going to be buying a used 1500 or 2500 in the next week or so and I can't seem to find much info on mpg. I know the 1500 gets around 16-17 (5.3 Z71 4x4) in a 50-50 mix of country roads and towns because I rented one and put 800 miles on it, but what does the 2500 get? FYI- I'm looking at 2001-2005 4x4's, would love a manual but all I can find is autos. Any numers on mileage would be appriciated. Thanks

[GasGuzzler]

It will be a lot worse. 2500's aren't EPA rated but you'll see 13 max in combined driving.

[supercobra506]

my 2001 1500 ext cab 4X4 5.3L got 15mpg around town and 18.5 highway, my 2002 2500hd crew cab 6.0L gets 11mpg around town and 15.5 highway...on the plus side i hauled a 10,000 lbs flatbed trailer from chicago to dallas and got 10mpg going about 80-85mph the whole way there