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Bullitt5339 · 02-14-2009, 09:01 AM

I don't know a whole lot about the '08 Bullitt, since I'm kind of mad at Ford for making another Bullitt. Us '01 owners were told by Ford that there would never be another Bullitt made, but that's not the car's fault, I guess.

I will say that running premium fuel ie. 93 octane in a vehicle that doesn't require it is a waste of money. You get absolutely no gain unless the car is tuned for 93 octane, or has carbon buildup raising the compression so much that you have to run it to avoid detonation. People are under the assumption that that higher octane fuel burns hotter or something, when the exact opposite is actually true. Octane slows down burning, which makes sense if you think about what's happening when a car is detonating.

So, while I don't know the answer to your question, I would say without a tune, a Bullitt on 93 octane would put out the same as a Bullitt on 89 octane.

02-14-2009, 09:01 AM	#2
Bullitt5339 1st Gear Member Join Date: Jan 2009 Vehicle: 2001 Bullitt Location: North Carolina Posts: 132	I don't know a whole lot about the '08 Bullitt, since I'm kind of mad at Ford for making another Bullitt. Us '01 owners were told by Ford that there would never be another Bullitt made, but that's not the car's fault, I guess. I will say that running premium fuel ie. 93 octane in a vehicle that doesn't require it is a waste of money. You get absolutely no gain unless the car is tuned for 93 octane, or has carbon buildup raising the compression so much that you have to run it to avoid detonation. People are under the assumption that that higher octane fuel burns hotter or something, when the exact opposite is actually true. Octane slows down burning, which makes sense if you think about what's happening when a car is detonating. So, while I don't know the answer to your question, I would say without a tune, a Bullitt on 93 octane would put out the same as a Bullitt on 89 octane.