Sportys used to sell a test kit that contained a chemical that would turn
purple if added to a fuel sample that was gasahol.

I have no idea of what the chemical was. It was a very easy to test the
fuel. They claim that their supplier no longer exists. I bought a bunch of
the kits and have about 1/2 a vial of the chemical left.

I sure would like to know what the reagent is that was used.

Cheers:

Paul
N1431A