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Product DescriptionREV-X Super Tester Ethanol Test Bottle - Flex Fuel, E85, E20, E10 - EASY TO USEBENEFITS OF THE SUPER TESTER ETHANOL TESTING KITTest your fuel for proper ethanol levels to ensure it does not damage your engine.Simple test to discover the percentage of ethanol in gasoline.High levels of ethanol could damage your fuel system and lower your fuel mileage.Ethanol can damage motors not equipped or designed to use it, test your gasoline first.Easy to read label and instructions. Testi...

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