Where are all those people that argued and argued AND argued with me over and over that a DI turbo engine can't detonate because "they" said the fuel was injected after the intake stroke.
You are only protected from embarrassment by RV.Net's inadequate bogus search engine. :B
OP, if I were you and towed in the moutains around sea level on hot days you better use the good stuff or the puter will pull so much timing you will overheat. You think the good stuff is expensive? Wait until you hurt that engine and Ford says you didn't follow their advisements. :E