SUMRX4
Aug 07, 2019Explorer
Towing speed
Just curious what speed folks run while towing. Where I travel I rarely spend any time on the interstate so my opportunity or need for 60+ MPH is rare. Next week I will be taking a 4 hour trip with mo...
Bobbo wrote:mnaquaman wrote:
A good rule of thumb is that for every 10 mph increase in speed you will see a 10% decrease in fuel economy.
My experience is with two separate RVs. On each I got a 50% increase in gas mileage for a 14% decrease in speed.
1. Class C on an E450 chassis - 70mph and 6mpg vs 60mph and 9mpg
2. Airstream TT behind F-150 - 70mph and 8mpg vs 60mph and 12mpg
I drive Memphis to Colorado Springs (1,000+ miles) to visit my sister.