Towing MPG

My best advice after nine years of 'podding: 55mph is the sweet spot for gas mileage.

 If towing is NOT thousands of miles a year. Then just ignore the fuel use and cost. Use the tow vehicle you have now, and enjoy camping. No need to agonize over fuel use if it's a low percentage of your overall yearly mileage.

 You could use a lot of math (rate calculations) to justify a new tow vehicle, but you will have to get the right combination of vehicle cost and fuel economy as it relates to your towing miles. Also, do you tow mountains, flat lands, tow weight, etc. So many variables.

 It is difficult (and usually expensive) to achieve small AND measurable improvements in fuel economy. 

Our TV is a 2017 Jeep Grand Cherokee Trail Hawk with the 5.7L Hemi engine. We set 60-61 mph in the cruise control, but turned it off for steeper hill climbs. As others have said here, head winds make a huge difference, and 'drafting' behind a tractor trailer can gain you 3-5 mpg. We set back 100-200 feet behind them and they didn't seem to mind.

This model of Jeep is equipped with a stability control system that seems to do a great job in combination with an E2 Trunnion 6K WDH. During one stretch of 20 kt crosswinds, I turned the Jeeps stability system off and found that it made no difference in steering or sway, the hitch providing all that was needed. I'll try the Jeeps system all by itself when the weather clears to see how it stacks up against the E2's trunnions. (It's 28 degrees out now and snowing...in April!!)

All in all the hitch is a good one, works well, but does extend down well below the bumper, as we bottomed out on one gas station entry with a deeper than usual western style 'gutter' along the street.

HTH's Rod