Quick Fuel Technology Echecker, E85 Fuel Test Tube 36-E85QFT

Simply and accurately check the percentage of ethanol content in your E85 pump gas. Simply add water to the water line and then fill the rest of the way with your fuel in question. Shake it up and let it set for a few minutes and there will be a line of separation telling you what percentage your fuel really is - it's that easy! Comes with protective sleeve and instructions.