I was wondering what do most of you use for fuel 87 octane or 93 octane? I am about to take delivery on a new mustang GT and was wondering what the majority of people are using. If using the 87 octane has anyone seen any performance loss?

 

i use 93 in mine, I'm not sure about the new stangs but most likely it is made to run on 87, and if it is i doubt you'll notice any performance gains by going to a higher octane. However if a car is supposed to run on 93 and a lower octane is used you will experience a performance loss

 

without mods follow fords recommendations... if you dont need higher octane to control the burn you are wasting your money... there is no performance gain by using higher octane fuel than your engine needs period....

 

go for premium! ExxonMobil has to build their cash mountain back up after they paid their CEO 1.4 billion as a bonus.

 

God youre so right.... i simply forgot....

 

And that comment has nothing to do with the fact that I own stock in the market...

 

Yeah, ain't that some shyt. Tough nuts for us little guys, greedy bastards!!![:@]

 

i run on 85 octane. 35ยบ timing, no problems whatsoever

 

bastard... i hate you....

 

You don't have to worry about premium until you buy a tuner or get a custom tune as your new car will come tuned for "regular" 87 octane fuel. You would be wasting your money by putting anything else in it.