Which gas station offer the better 91octane?? 76? Shell? Mobile? Exxon? Chevon? etc.

 

I would say Exxon

 

there is probably like 5 threads on this topic already....search

 

There may be regional differences, but most of what I read show 76 has the highest quality. You may want to do a search on the Vishnu board, but if I remember correctly someone did a back to back dyno runs with 76 and Chevron, 76 generated a bit more HP.

 

go to marathon.. they got 93

 

lol didnt want to be the *** on that one lol. There was one with a poll back if i remember