Engines with over 75,000 miles can suffer from extensive carbon deposits and excess friction. Gumout® Regane® High Mileage Fuel System Cleaner reduces friction in the upper cylinder to improve fuel economy, while using P.E.A. (polyetheramine) to effectively remove deposits other products can’t for restored performance. Learn more about the science behind Gumout and PEA.
Specially formulated for vehicles over 75,000 miles. Oxygen sensor safe. Safe for use in turbocharged and supercharged vehicles. Will not void OEM/manufacturer’s warranty. Add entire bottle to nearly empty gasoline tank, then fill tank with up to 21 gallons of gasoline. For best results, do not refill tank until near empty. Use every 3,000 miles.