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    Your answers to frequently asked questions about Gumout® products and their use. If the answer to your performance additives question isn't below, contact us by email or by phone.

My vehicle is designed for E-85. Would there be any benefit to running a Gumout product, since my car is designed for E-85?

24 June 2016

When running E85 use Gumout® Multi-System Tune-Up added to the fuel. Assuming the vehicle is Flex Fuel and can also run E0 and E10, when these fuels are run, use any of the Gumout® products as needed.

Engine deposits come from both fuel and crankcase, so any type of engine will build deposits and generally show performance improvements from removing those deposits.

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