F150 Ecoboost vs F250 Diesel mileage

Lynnmor wrote:

ShinerBock wrote:


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 simply copy and paste from the Ford manual, but what do they know about the EcoBoost engine? My post was a direct copy & paste once again. I never said "explode", so don't put words in my mouth. Read the manual and use your own "perception."

Exactly, your perception of what the manual states. You perceive is as stating that you have to run premium when towing, but most Ecoboost owners perceive it as stating that premium is recommended IF you want the best performance possible which is true since the power increases by about 15hp/10lb-ft when using premium and is most noticeable when loaded than empty. However, you don't have to run premium if you do not need or want the added performance, and running regular when towing will not hurt the engine.

The engine will not blow up or or reduce longevity if you don't. You will just not have the highest performance output of the engine available. This holds true for all variable fuel engines that can change their power levels based on the octane rating or knock prevention of the fuel used. If you look in the manuals of all variable fuel vehicles, it will basically say the same thing as Fords manual. For example my wife's Infiniti recommends premium, but says regular can be used, however, engine performance will be reduced.

I really don't know how many times I have to explain this. How many Ecoboost have you towed with that blown up, got damaged, or just plain won't run when you didn't use premium while towing. I am going to guess none.