AMSOIL P.I. Perfotmanec Improver Additive

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Restores up to 14% horsepower1 Restores GDI fuel injectors to 100% flow rate after one tank of fuel2 Improves fuel economy Reduces need for costly higher-octane fuel Helps prevent carbon rap Controls pre-ignition knock Compatible with capless fuel systems 1Based on third-party testing in a 2016 Chevrolet* Silverado* 1500, 5.3L V-8 GDI with 100,616 miles, using one tank treated with AMSOIL P.i. Actual results may vary.2ASTM D5598(M) – 2013 Buick Regal test vehicle. Show more