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P.i. Performance Improver Gasoline Additive

Product code : APICN-EA

  • Restores up to 14% horsepower1
  • Reduces 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.
  • Restores up to 14% horsepower1
  • Reduces 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.
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P.i. Performance Improver Gasoline Additive



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, E85 or 2-stroke mixed fuel.

See the Product Data Bulletin for full details.

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.1

Horsepower Comparison

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.
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.

See the Product Data Bulletin for full details.

P.i. Performance Improver Gasoline Additive



P.i. Performance Improver Gasoline Additive

  • 5 star rating
    Gas additive
    By  CARL,  a  Verified Buyer  from  Michigan   on  August 03, 2022
    I had about 26000 miles on my vehicle. I put this in my gas tank. I have noticed better gas mileage. Will buy again and put in every oil change.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Excellent
    By  Rodney,  a  Verified Buyer  from  AL  on  July 31, 2022
    Great product
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great product!
    By  STEVE,  a  Verified Buyer  from  Battle Creek, Michigan   on  July 31, 2022
    Used a bottle at the start of a road trip, and noticed that the car was getting better gas mileage as well as faster response. With the price of gas the way it is, this is a great investment in your vehicle.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Strong & effective cleaner…
    By  EDWARD,  a  Verified Buyer  from  Phx metro  on  July 26, 2022
    Better performance and mileage…smooth, really smooth
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Instant Results
    By  JEFFERY,  a  Verified Buyer  from  Missouri  on  July 26, 2022
    I noticed an immediate improvement in throttle response and idling. Overall, my 2018 GMC Sierra 6.2 runs better. I will definitely use this additive every 4k miles.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    it works
    By  CARL,  a  Verified Buyer  from  PA  on  July 25, 2022
    Excellent fuel system cleaner.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great product
    By  VICTOR,  a  Verified Buyer  on  July 25, 2022
    Works ad advertised
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Fuel treatment
    By  LEONARD,  a  Verified Buyer  from  El Paso Texas   on  July 23, 2022
    This product gives amazing results and does what it says it will do.
    Bottom Line
    No, I would not recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Performance improver
    By  MAURO,  a  Verified Buyer  on  July 22, 2022
    Getting great fuel mileage
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great
    By  HARRY,  a  Verified Buyer  on  July 14, 2022
    Wonderful
    Was this review helpful?