1fastSV said:whenever I use 89 or 87 octane... My SV feels as if it loses power and it sounds different. Its hard to explain.
I never use 87 or 89 octane because of that.
92 octane is much cleaner than 87 and 89. I've also used 110 race fuel a few times. didnt feel much difference but my lap times were a bit quicker.
Dont know if it was the 110 octane that made me quicker.
Higher octane gas is harder to ignite. It burns slower. In any engine you always want to use the lowest octane you can without causeing detonation. Putting too high of an octane in can amke you lose power.fungfung said: