[BlownSmoke]

Hello gentlemen,

I was wondering something. My wife owns an 07 mustang GT that has a BBK CAI, Pypes off road X pipe and mid muffler exhaust with an SCT 91 octane tune. We put a bottle of octane booster in half a tank of 87 (cause she was a goober and put 87 in a 91 tuned car) and we both noticed a substaintial increase in its power and throttle response. We were both wondering if we were to put some 104 in with the 91 that is already in it would it 1 hurt the motor and 2 do you see it having the same effect? I appreciate your input.

[v606er]

well it wont hurt the motor, but its to the same effect as running 93 in an 87 tune... pretty much pointless

[qwik48r]

uuuuuhh leaded? you want your o2's to keep working for a long time? your fuel tables arent going to add timing for higher octane so...... I see the placeo effect taking effect on you and your wife.. no offense.

now, you actually add timing... and run in SD.. sure why not. maybe 20-30hp...

[68351w]

I concur with the placebo affect, also no offense, because I have been there plenty of times with octane booster. I found that pretty much the only booster worth a shit is Lucas. but running booster in a car with a 91 tune won't do anything I'm afraid.

[ReverendDexter]

One thing you have to understand is that when octane boosters talk about adding "points" of octane, they're talking about what you and I would call "tenths", ie. if it adds 8 points, it doesn't turn 87 into 95, it turns it into 87.8.

Octane boosters are a waste of money, plain and simple.

And I agree, Lucas is good stuff. It does exactly what it says on the side of the bottle, which is a rarity these days.

[qwik48r]

but w/o tuning for higher octane, your doing..... NOTHING.