OK folks I finally figured out what to do with an F150 eco-boost while towing a trailer to reduce the chances of the temperature gage zipping up to hot and getting an overheating alarm. I’ve done some testing pulling a 7500 pound 26 foot cougar trailer up some pretty good grades in Idaho and come to the conclusion you cannot leave it in automatic shift it tends to over revved the engine past 3000 RPMs heating up the turbos significant and causing an overheat issue immediately! So here’s what I found we have a 2011 F150 eco-boost it says it can tow 11,500 pounds obviously that’s on a downhill grade but if you go into manual shift mode and keep the RPMs between 2200 & 3200 RPMs she will pull just fine and be happy temperature wise anything below 2200 RPMs she’ll bog anything over 3200 RPMs the temperature gage will go max quickly! So what I do is shift between fifth gear and fourth gear to keep the RPMs as close to 2500 RPMs as possible I can maintain 60 to 75 miles an hour pulling a 7500 pound travel trailer upgrades. Don’t try to pass a semi going uphill you will hit max temp within 15 seconds!!! The eco-boost loves 2500 RPMs! If you push her to 3000 or 3500 or even 4000 RPMs you will see the red light come on quickly!So manual shift keep RPMs between 2200 RPMs and 3200 RPMs nothing more.