Towed a 18ft sea ray 180 bowrider 80 miles one way running about 65 average no highway. lie-o-meter averaged 19mpg. 15' 8spd 3.92 gears 2/4 beltech. I have helper bags but they were not needed, they had around 3lbs air each in them. Trans temp never over 195 usually 188-190, i do have a 190 t-stat installed.
