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P.i. Performance Improver Gasoline Additive

Product code : APICN-EA

  • 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.

  • 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.

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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

Warranty

Data Bulletin

SDS



P.i. Performance Improver Gasoline Additive

  • 5 star rating
    Great products
    By  Hndimndn,  a  Verified Buyer  from  Glen Burnie Maryland   on  February 05, 2023
    Never an issue with over 15 years I love this stuf
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    P.I. Additive
    By  Bruno417,  a  Verified Buyer  from  Saint Louis MO  on  January 29, 2023
    Started using P.I. Additive about two years ago because where I live in Missouri we use 10% enthanol in our gas and now because of the fuel prices last year it is now up to 15% so I like to make sure my cars fuel systems are treated every 6K mile. I just treated my 2014 F150 that is flex fuel capable and have notice my fuel mileage has picked up 1-2 MPG since the last treatment. I trust Amsoil products and am now using them exclusively in all my autos.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Best of the best
    By  SAMUEL,  a  Verified Buyer  from  Texas  on  January 27, 2023
    I only use the best for my Civic Type R and Amsoil is the best! Fast shipping great prices 10/10 I recommend them to everyone!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    P.i. Performance Improver
    By  JERRY,  a  Verified Buyer  from  TEXAS  on  January 26, 2023
    I have used P. I. for many years. I even give a bottle to friends, ever now and then.. We all love it...
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Real performance Improver
    By  TIMOTHY,  a  Verified Buyer  from  Colorado Springs  on  January 18, 2023
    In my past 5 family vehicles in Upstate New York, this additive has helped them start esp in very cold snowy winters, while correcting some of the damage caused by Ethanol-Added gasoline. This is the only gasoline additive I use.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    DI gas engines need help
    By  ALLAN,  a  Verified Buyer  from  OK  on  January 18, 2023
    trying to do what I can to help keep the carbon buildup to a minimum.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great product
    By  ROBERT,  a  Verified Buyer  on  January 11, 2023
    The best gas additive I have ever ordered.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Fuel cleaner
    By  JAIME,  a  Verified Buyer  on  January 09, 2023
    Used to clean my Injectors. Zero issues
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Car
    By  JEREMIAH,  a  Verified Buyer  on  January 09, 2023
    Used this in my car to clean system. Very good product.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Good stuff
    By  WES,  a  Verified Buyer  from  Whitby   on  January 08, 2023
    So far so good very happy
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?