Ford Tow Haul Mode - Do you use it?

[mfoster711]

I previously had a 2007 F250 Diesel. It had a tow haul mode for the transmission but I only used it once because it did not seem to make much difference and caused my gas mileage to stink. I might be wrong, but I think the tow haul mode would disable overdrive which is probably why my gas mileage stunk.

I now have a 2015 F150 and did some towing today with and without the tow haul mode on. In my F150 it seems to make a bigger difference. When tow haul mode was off I felt like the transmission was shifting way too often. With tow haul mode turned on the transmission shifted less often and seemed to drive better.

I guess I will just drive with the tow haul mode turned on but I was wondering what others do? Do you use it on your F150? Does it make the gas mileage a lot worse?

[agesilaus]

It supposedly changes the shift pattern.

On 6.7L diesels it makes a major difference since it activates the exhaust brake.