This 99.9% AA clear Alcohol is the highest quality available within the industry. Insinger Performance has been supplying methanol for 25+ years and S-1 Stinger Racing Alcohol has the #1 in its name for a reason, it’s the #1 choice of racers. S-1 WILL pass the water test and is used consistently in Drag Racing, Oval Track-Sprint Cars, Hydroplane Racing and Tractor Pulling applications. Mike Janis Racing utilized this exact product to win the 2018 Pro Modified Championship!