I always wondered if aviation gas would pass especially the 115/145, the 145 is the octane equivalent with a rich mix. I know you can get 100 octane at airports but don't know about the
115.
It was tough to get race gas in Fresno area for awhile as the speed shop closed down during the recession, but they reopened. When I lived in Santa Ynes I bought 100 octane for El Mirage
at the airport, we ran but didn't set a record so gas was never tested.
In the book Thompson Trophy Racers ''like before Reno air races'' it says the 115/145 with water injection was the equivalent of 170 octane
One of the reasons we water inject
JL222