F150 Ecoboost vs F250 Diesel mileage

Groover wrote:

Lynnmor wrote:
Of course when selecting 87 octane fuel, just completely ignore the owners manual:

We recommend regular unleaded gasoline with a minimum pump (R+M)/2 octanerating of 87. Some fuel stations offer fuels posted as regular unleaded gasoline with an octane rating below 87, particularly in high altitude areas. We do not recommend fuels with an octane rating below 87. For vehicles with EcoBoost engines, to provide improved performance, we recommend premium fuel for severe duty usage such as trailer tow.

I am satisfied without the "improved performance". I have not heard of anyone suffering ill consequences from running 87 octane in an EcoBoost. The only reports that I have seen from users that tried premium fuel were that no performance changes were noted and MPG declined slightly. They went back to 87 octane. My 2013 Ecoboost that my daughter uses for pulling her gooseneck horse trailer has gone over 100,000 miles so far with no issues whatsoever and has used nothing but 87 octane. If anyone has different first hand information I would like to hear it.

Lynn and I had the conversation many times before, but he insist that the EcoBoost requires premium when pulling anything or the engine will explode. I am not sure if Lynn is based on real world experience or off of his own perception of what the manual states.

I have the same experiences as you with my old EcoBoost. It did need premium when towing heavy, but it did effects performance slightly. I hardy ever ran premium even with a tune. We never run anything other than 87 in all of our Ecoboost parts deliver trucks and they tow all the time while easily lasting past 150k when we austion them off.