2016 GMC Denali HD 6.6, Leveled, 35x12.5 Ridge Grapplers on Stock Wheels
Hey everybody. im in the process of buying a 2006 gmc sierra 2500 hd crew cab 6.6 turbo diesel (lly apparently) from my father in law. it has 30000 miles on it now and this is the first diesel i will have owned. ive been driving it for about 2 weeks now and i love it. the only thing im not real happy with is the mpg. i wouldnt mind a little more power but it has more power than what i really need in a truck already. if anybody could give me some advice on mpg increase i would appreciate it!