I get better performance with 91 than 93 octane

[cdesigns]

Guys is weird but, I have been running 91 octane instead of the 93 octane gas and the engine feels more powerful than with the 93octane.

I haven't check gas mpg but it feels better, no knocking. and is cheaper (yippy)

[erhayes]

Look at the thread above this concering fuel octane.

[AWmustang]

91 is the lowest octane required by the manual.... unfortunately no gas station by me sells 91. My choices are 87, 89, 93.

[Rick's CX-7]

I've been running 89 for over 2000 miles now without any adverse effects. I've taken a good beating for it, but it's all good!

http://www.mazdas247.com/forum/showthread.php?t=123674218

[MS3ICA]

thats probaly in your head, lower octane does not make your car more powerful

[Rick's CX-7]

Of course, you have proof! Right?

[Killer]

I cant take ANOTHER octane argument.