Why is it not recommended to use cruise control with towing?

I'm a cruise-control-aholic. Can't imagine having to keep my foot on the gas pedal for hours and hours.

 

i think the only thing about using cruise control is the hunting for gears and the lower fuel milage due to that. Physically other than that I do not see a reason not to use it.

 

I didn't post to this before because i don't want to be "that guy". but i do agree with what the dealer suggests. for me, locking out 6th would be the way to go 90% of the time. IMO, i would find a gear and a speed that gets the engine singing as close to 2500 rpm, as that is where the EB makes it's peak torque. do that, and i think you wont be hunting for gears too often.

the following video was my 2010 5.4 3.55 4x2 towing a 3800lbs message board in a section of rolling hils. granted, your EB has more power and more gear, but you will be towing more load with more aero load as well, so i would expect your truck would behave similarly in similar terrain.

Kind of a boring video, but if you decide to give up 3 minutes of your life, you can count the shifts. on the average, it would only hold a gear for about 15 seconds before it would upshift or downshift. I will qualify this with the fact that i tow with the cruise set at 65. instead of a long dissertation on why, i'll just say "i just do" ... i know some dont, that's the only reason i mention it.

2010's do not have the ability to lock out gears, so count your blessings that you will be able to. you can modulate the shifting *some* if you drive by foot, but as soon as you lift it will upshift unless you lock 'em out.

sorry if this bores you.... but ... eeeh

 

Ya, I can't see any reason to not use cruise either. Tap shift takes care of the rest.

 

I have to use cruise-control on long trips to keep my right foot and ankle from painfully swelling up like a balloon. I've had it swell so badly, I was afraid the skin would split.

 

i think the hole reason not to use Cruz is when your in the mountains if you drop down 10 MPH from set point it turns off and seems to bother people. thats the only reason i could find and thats what my dealer said as well.

 

Overdrive starts at 5, but honestly your better off just letting the transmission handle the shifting It actually is pretty intelligent. When you stick it into tow/haul mode unless it detects you coasting, it waits a considerable amount of time before upshifting, and will downshift pretty quick on a hill, these truck's have sensors that detect those sort of conditions.

 

Any update OP???? How is/was the trip??? How's the towing?????

 

This makes sense cause Mike from 5startuning told me that ford has two tables in the ECU; 87 and 91 and that the knock sensor can add timing based on how much knock it hears so if you want more power towing I would use 91