P.i. Performance Improver Gasoline Additive

• 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.