I don't know exactly what gas you were looking at, but I have been involved in motorcycle racing for years. Bikes have very hi compression engines by comparison, usually 11-13:1. I know most racers, the first thing after a race drain the race gas out of their tanks & system, then fill it with pump gas. I don't know how true it is, but I've always heard race gas is VERY corrosive to the fuel system. Just my observation and 2 cents.