I have 2 3.5 Ecos the 11 gets 10mpg towing through the mountains cruise set at 64. The 18 does the same routes at 10.5 mpg cruise set at 64. I have over 40k miles towing with the Ecos now and both get those averages consistently.
I never have nor will get the supposed NEED to tow so fast...part of Rving is enjoying the ride and scenery to the destination.
Yes I will avg 60mph on the 75 mph posted interstates...in 22 years of Rving NEVER had an issue...let those who aren't towing go around you it's very simple :D
