[THEFERMANATOR]

Originally Posted by ssiredfish

Ive got an 05' 2500HD 6.0L and Im about where you are w/o the lift and 285's.

I checked it this morning. Avg of 10.8 so yea it sucks and I drive about like you do. Pullin the Wellcraft I get 8.9.....Did I win?????

Originally Posted by phatdaddy

i've got a 02 tahoe 4wd w/ 5.3. pure stock with 265/70 16's yokohama geolanders 185,000 miles.. i just got back from a trip to st pete, all interstate. got 18 mpg keeping it at 75 , 2000 rpm. around town i get 14. we only use it for road trips and launching the boat. trailering to the keys, i got 11 mpg at 65, in trailer mode.

have you guys seen any feedback on the new dodge diesel 1500?

Originally Posted by Pipe_Dream

2000 Suburban (1500 4WD) averages 15-16 mpg, no matter how I drive it, except when pulling a heavy trailer or boat it drops a few. Stock size tires, though. It has 267,000 miles on it and it's still going strong.

Have you recalibrated your mpg taking into account the increase in distance traveled per revolution of your tire? You know how the speedo is affected, registering slower than your actual speed, the odometer is similarly affected.

You guys need to keep inmind you have LS based engines whereas STINK has an old school L31 VORTEC. So the 99+(new body style) WILL get better milage loaded than the L31 does. And if you haven't corrected your odometer yet, you need to add about 10% to what your getting for mialge. Add in the body lift and more aggressive tires, and it sounds like your getting about as good as you can until you regear it, put some headers on it, modify the throttle body, a cam, set of beehive springs and special retainers, match port the heads, gut the intake out(the stock L31 intake is RESTRICTIVE in stock form, I spent about 4 hours porting one to get it to flow decent), and a tune.

Or just deal with what you have.