Interesting timing on this last comment...85F day in Kentucky I75 mountains today and reset the code too many times. Filled the tank and expected it to slow down, but it remained pretty consistant.

Was thinking about a cheap experiment with doubling the fuel cooler size. Misting would also be interesting.

Coyles experience with additional filtration and high fuel capacity sure sounds encouraging, especially if the towing is heavy, hot, and uphill. Maybe he'll chime in to tell us more about what is typical loads and such are...max loads/max hills?