Join Date: Jan 2009
Thanked 40 Times in 30 Posts
disappointing mileage in an '05
My dad is getting about 14 to 15 with an '05 2wd CC GMC around town. He also pulls a trailer during the week that could run in excess of 18k lbs. However, when pulling the trailer his mileage goes down to 9 or 10. When I pull that weight I get about 13 to 14, and around town empty I am getting 20+ (w/ '02 LB7 zf6).
What is the major difference here? I am 4wd and he isn't?? I have 33" MT's and he has 245 michelin street radials.
What can he do to increase his mileage while being financially responsible?? And what is the difference? I know the engine is slightly different, but what gives?