Quick
Fuel #36-E85 E85 Fuel Test Tube, Clear, Glass, Graduated 70-100
Percent, Each.
Q02-36E85
Description: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.