Tow/haul mode experience

[DJBisME]

Older thread, but I can confirm the lousy gas mileage. I have a 2017 Expy Limited. Power-wise it tows and stops great. No problems on most hills or passing. I pull a 21ft travel trailer (prob around 5500lbs). Mileage is atrocious - average around 7mpg cross country. My 2005 Tahoe (5.3L V8) used to get 10-11mpg. When not towing the Expy only gets about 2-3mpg better than the Tahoe did as well. So much for the EcoBoost...

 

[JasonH]

Older thread, but I can confirm the lousy gas mileage. I have a 2017 Expy Limited. Power-wise it tows and stops great. No problems on most hills or passing. I pull a 21ft travel trailer (prob around 5500lbs). Mileage is atrocious - average around 7mpg cross country. My 2005 Tahoe (5.3L V8) used to get 10-11mpg. When not towing the Expy only gets about 2-3mpg better than the Tahoe did as well. So much for the EcoBoost...

You get eco or boost, but not both at the same time. I'm fine with it. I don't tow that often so the unloaded mpg is satisfactory.