mlts22 wrote:
I found tow/haul mode good in heavy traffic. Let up on the gas, the locked TC slows the vehicle down without the need to hit the brakes.
Same here.
I've found that leaving our E450 Class C in Tow/Haul in heavy traffic gives the motorhome a whole different feel. More responsive, with an overall feeling of a lot more zip. Just guessing ... but probably it's due to a combination of staying in the lower gears a bit longer along with the locked up torque converter.
Of course out on the open road on the level I can't tell any difference whether IN or OUT of Tow/Haul because overdrive still works just fine in Tow/Haul. Engine RPM when cruising remains the same in either mode, so gas mileage and engine wear are not affected when using the Tow/Haul mode in that situation.