Car and Driver octane test
Before anyone gets excited about the latest test showing that the 3.5 Ecoboost runs a lot better on 93 octane please take notice that this is the HO version only available in the Raptor and the Limite...
Forum Discussion
Groover wrote:
Recommend and Require have quite different meanings, please learn and understand them.
Again & again, here is the owners manual:
For best overall vehicle and engine performance, premium fuel with an octane rating of 91 or higher is recommended. The performance gained by using premium fuel is most noticeable in hot weather as well as other conditions, for example when towing a trailer.
I don't care if you run skunk pee, but you don't need to talk down to someone that only displays information from Ford.
What part of this do you not understand?
