gas mileage

I recently bought a 2002 Silverado 2500, I am getting about 11.5mpg, my question to guys with a 2500 is: Is this normal mileage? I am not expecting 20mpg or anything crazy but just looking for some input.

I have had an 02 1500HD 6.0 (3.73 gears) for just over a year now and have gotten about 11.5 the whole time. I'd say you aren't bad off.

I have a '00 2500 with a 6.0 and a 6" lift with 35" tires and get ~10MPG.  I can get 12MPG if it's straight highway miles.

You got any pics of your truck? I really want 33s or 35s.

I'll have to see if I have any on my home computer tonight.  I had A/T BFG's on the truck, but just bought the new Toyo Open Country M/T's and they look awesome.  I have heard nothing but good things about this tire.

quote:

ORIGINAL: Jinxd8800

I have a '00 2500 with a 6.0 and a 6" lift with 35" tires and get ~10MPG.  I can get 12MPG if it's straight highway miles.

hmm...theres gotta be a way to boost mpg.....

Post your pics as soon as you can too, My start was with a K&N intake and tuner. Got them at AutoAnything and at Truck Addons

Has anybody had success improving their MPG with things like the Hypertech Econ or even a Tonneau Cover?  This $4.50/gallon is killing me!

MPG Improvement
 
Run tire pressure 3-4 psi over std.
 
Change all drive line systems to synthetic oils
 
Add K&N air filter or one similar for better air flow
 
Give it a complete tune up using all AC Delco parts
 
Add 1 can of seafoam fuel cleaner to tank on the next two fillups.
 
Drive it like your sainted grandmother would drive it, slow starts, no run and gun.
 
For every 5 mph over 55 mph you start losing about 1 mpg.
 
It takes fuel to move heavy iron, it takes even more fuel to move heavy iron fast.
 
Good luck and stay safe,
 
I am seeing more seat time on my motorcycle.

16 MPG hwy for me.
12 town

What about that water/hydrogen conversion kit that you can build yourself and add to your system?  It might be a hoax but I understand that you can build it yourself from common materials and increase your mileage by 40-60%.  If it's true, I'd like to try it just for the science of it.

check out the hydrogen thread in off topics im making some good progress

My 04 Silverado 2500 Crew Cab Longbed 4x4(6.0L,410 gears) was getting @11mpg at time of purchase. I added a fiberglass camper cap (with good aerodynamics,apparently) and my mileage immediatey went to 14mpg. The cap (1400$) paid for itself in about 2 years.