AMSOIL 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.
 
CLEANS COMBUSTION CHAMBER DEPOSITS
Fights combustion chamber deposits to help restore power, control knock, increase fuel economy and reduce the need for higher-octane fuels.
Protects against compression loss, difficulty starting and rough idling.
Reduces possibility of "carbon rap," when deposit buildup causes the piston to hit the cylinder head.
Decreases the possibility of pre-ignition "knock" or "pinging."
CAPLESS-COMPATIBLE BOTTLE
Bottle is fully compatible with capless fuel systems.