Bardahl E85 Treatment SpecificationsBardahl E85 Treatment provides continuous protection for the engine and its fuel system. This additive for E85 comes in a 500 ml bottle and helps to maintain the engine's oil film preventing build-up and corrosion thanks to its formula which eliminates the water contained in the fuel. It also helps with cold starts and operation.How to use: Unscrew the cap then squeeze the bottle and fill the graduated part according to the number of litres of fuel to be treated (10 ml = 10L of fuel). Pour directly into the tank then drive normally until the treated fuel is used up in one or more trips.