87Octane

No, the car will compensate, but refrain from full throttle until you can use it up and get 91 back in it.

 

In my area, I have the choice of 90 octane non-ethanol or 93 with ethanol. Is it better to to go with the 90 non and add an octane booster OR go with the 93 ethanol and add an octane deleter? Thank you in advance.

 

It has knock sensors. Even full throttle makes no difference. The computer won't let it hurt itself.

 

What model are we talking about here?

 

The FF has Ion sensing technology, it adjusts the injection and timing at every rotation. You can go full throttle without damage, it will be down on power but will not hurt it. On the flip side, if you put in higher octane fuel, say 100 unleaded race gas, it brings the power up and runs faster.

Cars with just knock sensors will take timing out for a knock but cannot monitor the actual running of the engine like Ion sensing does. Also adding high octane fuel will not result in more power with just knock sensors as the tune is set to run 93ish octane and it is set to do that safely. They are there as a safety measure only.

Gotta love modern technology.

 

Is it still a variation of knock prevention. The marketing division needed to give it a loftier title.