djdalfaro

Are there any negative effects of going to a higher octane? Like if I had 97 octane available, would it hurt my car in any way? In what ways would it help? Thanks

~Alf

amoosenamedhank

Wouldn't help any and defenitly would be a waste of money. I heard both ways on wether it would hurt anything or not I dont know about that.

Deannostang

Big waste of money, that's all. If you advance your timing to the moon or have 12:1 compression ratio it may be of some use. Regular gas has more brut explosive power while high octane just retards the burning to keep your pistons from firing prematurely causing knock. Rule is: if your car runs fine without any knocking on 87 pump gas, don't waste your money on anything else......period!

Oscar_3748

alf do you know how to fix my fog light so that they stay on when I hit my high beams?

rbstang

higher octane is useless unless your timing is retarded or you have a built motor.

djdalfaro

yep... gimme a sec, I'll send you some links

http://www.mustangworld.com/ourpics/fcar/fog2.htm
there is one way... it's not the way I did mine tho... here is that link...
http://www.MustangForums.com/m_1305667/tm.htm
I know the pictures are crappy, but it's the best I could do. If ya need more info let me know.

~Alf

djdalfaro

do you mean advanced?? or do you mean retarded as in sh!tty?

~Alf

rbstang

advanced

03sonicgt

Pointless, it's a waste of money.

djdalfaro

I'm running 91 now, with my predator advanced all the way. If I switch it down to 89, do you think it'll hurt? I've got just light mods... CAI T/B&Plen, o/r X, flowmasters, i had to take out the 24# FI, I just didn't have the power for them.

~Alf