Last w.e. I averaged 25mpg from Tahoe to Sacramento while pulling my 18.5ft ski boat, 3 adults, A/C on and 100 degrees outside, 55mph average speed. After I was cruising 70mph on HWY 5, my mileage was showing 20.2mpg when I arrived in San Jose.
Just than half a tank for 200 miles Tahoe-S.Jose trip while pulling a 4000lbs boat at freeway speed...! Love it !