what kind of fuel you use?

jahnplay

New Member
Dec 5, 2008
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i was using unleaded the 83 octane and my friends started saying i need to put 93 in there. but it says don't use higher octane in the user manual. So guys what do you put in your Mustang. i got a 2006 Mustang GT
 
There is absolutely no point in using anything over 87 octane unless your car is tuned to take advantage of the extra octane or if you increase the timing...

I use nothing but shell 93 in my car...
 
If the car doesn't have a tune than it's pointless and you're wasting your money by using anything other than 87 octane. The only reason why you should ever use a higher octane is if you can audibly hear knocking. If you're going to get a tune, than spend the money on 93 octane. When tuned for 93 octane will provide more power and even better gas mileage.