This is a discussion on Anyone towing over #8500 pounds within the F150 Ecoboost Towing forums, part of the F150 Ecoboost Forum category; I tow a 6.5-7k trailer with mine all over the Southern Sierra (out of Fresno) without too much issue. Our grades are a lot steeper ...
I tow a 6.5-7k trailer with mine all over the Southern Sierra (out of Fresno) without too much issue. Our grades are a lot steeper down here. It does get a little nerve racking on long downhills as the Ecoboost has very little engine braking. I downshift it and let it rev. 4,000-5,000rpm seems to provide the most engine braking. Always make sure my trailer brakes are up to snuff and have fresh brake fluid in the truck.
Mine likes to overheat on long grades when the ambient temps are above 85F (already had many discussion on this forum about it). Coolant and tranny. Typically have to pull over halfway up. Going to try a larger tranny cooler this year and see if it helps.
2013 F150 4x4 EB
2005 F250 4x4 6.0 Sold
2002 F150 4x4 5.4 Sold