Horrible Gas mileage
Ok.. so I know fuel mileage is probably the biggest shock most RV'ers experience, shortly after they shell out the big bucks for their rig. I have a 2011 GMC Silverado, short bed, 5.3L, 3.73 gears, t...
Forum Discussion
If you want an apples to apples comparison, I've towed the same TT w/ 4 different trucks:
2005 1500 Suburban 5.3l 4.10 gears -- 8-9.5 avg.
2006 2500 crew cab duramax -- 10.5-12 avg.
2010 1500 Suburban -- 9-10 avg.
2011 F150 Ecoboost -- 9.5-11
So about as apples to apples comparison as you can get. The only difference is, I towed faster in the Duramax than the 2005 Suburban for sure (55 vs 65), and tow faster in the Ecoboost than the 2010 Suburban (60 vs 65). Really just because the Duramax and Ecoboost tow easier, so I don't feel like I'm flogging it!
2005 1500 Suburban 5.3l 4.10 gears -- 8-9.5 avg.
2006 2500 crew cab duramax -- 10.5-12 avg.
2010 1500 Suburban -- 9-10 avg.
2011 F150 Ecoboost -- 9.5-11
So about as apples to apples comparison as you can get. The only difference is, I towed faster in the Duramax than the 2005 Suburban for sure (55 vs 65), and tow faster in the Ecoboost than the 2010 Suburban (60 vs 65). Really just because the Duramax and Ecoboost tow easier, so I don't feel like I'm flogging it!
