F150 Ecoboost vs F250 Diesel mileage

Lantley wrote:
ShinerBock I agree with what your saying for the most part.
I interpret the manual to say For optimum performance use premium while towing.
Why would one not want optimum performance?
How can one accurately compare Ego Boost performance to the F250 diesel unless the Ego Boost is delivering optimum performance?

Ego Boost? Is that a spell check typo?

Why would one not want optimum performance? Because it may not be needed. If you can tow the weight you need while being able to maintain the speed you want to and have no issues getting up to speed then why would you want to pay extra in fuel costs for more performance that is not needed? Now if you are one that just wants the best performance all the time or actually need that extra 15 hp to maintain speed while towing then they have that option. With the truck empty and/or under light load, you will likely feel no difference in the gains with 93 octane since the gains are mostly at peak.

Although, if someone wanted better performance in an Ecoboost and still wanted to run 87 then I would recommend a 5 Star tune. Removing all of the emissions programming brought my old Ecoboost up another 60 hp and 100 lb-ft on my 87 tow tune which is way more than 93 octane will add on the stock tune. The engine has a lot of emissions nannies holding it back and even do more harm to the engine is some cases.