AMSOIL P.i.® Performance Improver Gasoline Additive - 12 oz Bottle

AMSOIL P.i.® Performance Improver Gasoline Additive is a deep-cleaning gasoline additive engineered to remove stubborn deposits from injectors, intake valves, and the combustion chamber in gasoline-powered cars and trucks. AMSOIL says it restores up to 14% horsepower, restores GDI fuel injectors to 100% flow rate after one tank, improves fuel economy, reduces the need for costly higher-octane fuel, helps prevent carbon rap, controls pre-ignition knock, and is compatible with capless fuel systems.

Designed to aggressively clean the entire fuel system in one tank of gasoline, P.i.® helps restore lost performance and improve injector function in both port-injected and direct-injected engines. AMSOIL says it is a potent gasoline performance improver with concentrated detergent chemistry made to attack power-robbing deposits.

Built for regular fuel-system maintenance, this additive is ideal for gasoline-powered street vehicles and performance applications that need a strong one-tank cleaner to help restore power, fuel economy, and drivability. AMSOIL says to add the entire bottle at fill-up, that one bottle treats up to 30 gallons, and for best results to use it every 4,000 miles. AMSOIL also says do not use with diesel or two-stroke engines.

Performance tier

Top tier – fuel system cleaner / street / performance

Developed for gasoline-powered vehicles where injector cleanliness, restored power, and improved fuel-system performance are important. 

Features

Restores up to 14% horsepower
Restores GDI fuel injectors to 100% flow rate after one tank
Improves fuel economy
Reduces need for costly higher-octane fuel
Helps prevent carbon rap
Controls pre-ignition knock
Aggressively cleans injectors, valves, and combustion chamber deposits
Compatible with capless fuel systems

Compatible with gasoline-powered cars and trucks using port-injection or direct-injection systems. Always verify the product is being used in a gasoline engine only. AMSOIL specifically says do not use with diesel or two-stroke engines.

Specifications

Type: gasoline fuel-system cleaner / performance improver
Product code: APICN-EA
Available size: 12 oz bottle
Treat rate: up to 30 gallons
Application: add entire bottle to tank at fill-up
Brand: AMSOIL

AMSOIL recommends using P.i.® every 4,000 miles for best results.

Note

For gasoline engines only.

Do not use with diesel or two-stroke engines.

Always add to the fuel tank at fill-up and use the full bottle for the proper treated fuel volume.

Not sure what to run? message us and we’ll recommend the right setup for your build

Recommended pairings

AMSOIL Signature Series motor oil
AMSOIL Upper Cylinder Lubricant
AMSOIL DOMINATOR® racing oil