high octane

is running high octane in our tegs really worth it? does it create that little bit more hp? and i heard that it is alittle bit cleaner than regular gas.

What motor do you have?? I run what my owners manuel tells me to, and 104 when I go to the track.

If you fill up on prem and do your mpg then fillup on 87 and do your mpg I have found that the cost and the extra mpg wash out. So basically it is not costing you any more money in the end to use prem. That is how it works out for me here in GA. All I use is 93 and 100 for track.