how many gallons do you put into your car.. how often. what are the positive and negative of higher octane? just wanted to know yall's thoughts.
"i know it cost more"

 

Will do nothing for you unless your computer is tuned to take advantage of it. Higher octane takes longer to burn. In theory, you'll get the best performance from the LOWEST octane your engine can run maximum tuned (meaning what its already tuned for) timing at and not detonate.

 

waste of money if not tuned for

 

like stated its not doing much for you unless you have a tune for it. 94 running on a 93 might work if the 93 tune had a little ping or if you increase the settings manual with the tuner and the 93 tune.

 

Enough to fill it.

As stated above, you need to be tuned for higher octane to take full advantage of any power gain.

 

where do they sell 94 octane?

 

Sunoco in Canada has 94

 

a couple stations do, Phillips 66 and Sunoco are the ones i know do in my region

 

hmm cant find that in louisiana or texas

 

im in ga so i go to this local gas station that sells 98 and 110.