Description
PERFORMANCE IMPROVER
AMSOIL P.i. is a potent gasoline performance improver with concentrated detergent that aggressively cleans stubborn, power-robbing deposits from injectors, valves and the combustion chamber. Effective in port and direct injection systems. Bottle compatible with capless fuel systems. Cleans entire fuel system in one tank of gasoline. For use with cars and trucks. Treats up to 30 gallons. Add entire bottle to tank at fill-up. For best results, clean your fuel system with P.i. every 4,000 miles (6,400 km). Do not use with diesel or two-stroke engines.
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
Maximum Deposit Clean Up
Helps keep valves clean and moving freely.
Aggressive additives attack the most common forms of engine deposits and limit their effects.
Removes Fuel-Injector Deposits
P.i. removes deposits and keeps injectors functioning as they should.
Testing shows P.i. restored GDI fuel injectors to a 100% flow rate after one tank of fuel.2
Restores Horsepower
Third-party testing demonstrated performance of P.i. using a 2016 Chevrolet* Silverado* with 100,616 miles on the odometer.
Following a single treatment with P.i., the truck measured an incredible 14% improvement in horsepower.