rcsb 06 gmc 6.0 longtubes, maganaflow cat back, intake, 4.10 gear rest is all stock. i average about 11.5 mpg every tank i drive around 40 mph in town short 5-15 minute drives might get on the highway once or twice per tank. anyone else get this bad mpg in a rcsb 2wd truck?

 

A guy that i live by has a modded lq9 with one hell of a loose converter and gets better than that! You should be getting way better than that. Tire pressure and driving habits have a lot to do with it also.

 

I get around 13.5-14 on average, heavy city, some highway

 

Who did your tune?

 

Why you bitchen?? I get a whopping 9-10 mpg lmao

 

Cause your IGF valve is clogged

 

LMFAO, yah I went to autozone but they said they were out of them.. special order..

 

i just averaged 19mpg, 50/50 mix driving

 

i dont get much better if at all. maybe 12.5 city driving if I really baby it....but who can do that?

 

I get around 16 city / 20 highway. I baby the truck 80% of the time though. Make sure your tune is programmed with the correct tire height and rear end ratio.