Well to tell you the truth I called amoco, and they said they only sell 93 in missouri and around here in the west. He said they dont sell 91 hardly anywhere anymore. I usually by bp/amoco gas, so hopefully they are correct. Tank still not empty yet. I will see later I guess.

 

I purchase it on New Florissant RD in OLD TOWN Florissant. I do plan to have Doug change it to 91 as like you said not everyone sells it. My car will go into storage right after the tune.

 

Well It's probably something to do with being near the hills/country if you know what I mean. All the stations around here are 93 octane. Every gas station I drove by on hampton and kingshighway are all 93 octane. The amoco rep said that not even that many places this far west have 91 at all. So if you do change your tunes, you my want to have a 91 and 93 race or performance tune.

 

Guess I will look around more for the 93 but think I will stick with the 91, next thing is to find gas with out the BS additives . Guess I'll have go to Potosi .
Looking forward to seeing you guys in a few weeks .