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AMSOIL 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.

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AMSOIL 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.

AMSOIL P.i.® Performance Improver Gasoline Additive

Warranty

Data Bulletin

SDS



AMSOIL P.i.® Performance Improver Gasoline Additive

  • 5 star rating
    AMSOIL gas additive
    By  HARRY,  a  Verified Buyer  from  Indianapolis   on  June 08, 2024
    This gas additive works great in everything I put it in my boats jet skis cars trucks very good stuff
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Vehicle fuel system.
    By  KEITH,  a  Verified Buyer  from  Wichita, Kansas  on  June 04, 2024
    I purchased item to maintain performance of fuel system and fuel mileage. Install bottle every 4 thousand miles.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great Results
    By  JASON,  a  Verified Buyer  from  Cochrane AB   on  May 31, 2024
    I run this on all the family vehicles every 5000 kms regardless. On our ‘17 explorer sport ecoboost we were having issues with rough idle and poor mileage. Ford wanted to clean the intake ( we have a catch can ) and change plugs etc. I got 3 of these and ran them back to back on fill ups ( all highway 110kms/hr ) combined with 94 octane fuel and after the 3rd tank it was night and day difference. No more irratic idle , we never seen better than 10L/100kms mileage and now we consistently get 7.8-8.7 L/100kms on the same trips. We do run the upper cylinder on every tank and the pi every 5000 kms now. Before amsoil we tried all sorts of competitor products and nothing made any noticeable change.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great Product
    By  CHUCK,  a  Verified Buyer  from  MN  on  May 27, 2024
    I have been using PI for several years in a 2001 Chevy Astro van, 1999 Chevy Blazer, and a 2000 Pontiac Firebird, ALL of them are still running with no problems. I now have a 2009, and a 2017 Chevy Traverse. I use PI in both. I have been getting a check engine light in the 2009 Traverse (has a newly rebuilt engine), the code indicates a possible emission system issue. I have used PI during this time, and the check engine light goes out. This is NOT a permanent fix...I have an appointment with my mechanic to verify the exact cause. But up to this point, I have not had any engine performance issues.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    P. I.
    By  TYLER,  a  Verified Buyer  from  Riverside  on  May 22, 2024
    While this is in your tank it really dampens the performance but thats just because it's cleaning so dam well cuz soon as you fill a new tank once the pi has ran its course man you can really feel the difference I am super impressed
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    A good clean up!
    By  MICHAEL,  a  Verified Buyer  from  Quebec Canada  on  May 09, 2024
    one a year to clean the injector, the best to restore power!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Good Stuff!
    By  CHRISTIAN,  a  Verified Buyer  on  May 08, 2024
    Increased gas mileage car runs smoother and quieter.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    For 3 vehicles
    By  VINNIN,  a  Verified Buyer  on  May 06, 2024
    I put this with every other fill up. Used for, HD, GMC Sierra and wife 2012 Honda CR V.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    peak performance
    By  Ernesto,  a  Verified Buyer  from  Southern Oregon  on  April 29, 2024
    This product is great. I've used a lot of others and this stuff seems to revive my wife's turbocharged lezbru/subaru better and longer. I use it at oil change and halfway thru oil change mileage. Thanks, good stuff. Keep innovating and I'll keep buying.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Every 3,000 miles
    By  EDWARD,  a  Verified Buyer  on  April 25, 2024
    This, along with Upper Cylinder Lube, brought my engine back to life. Snappy response to throttle, quiet, smooth idle. I'm Amsoil for life
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?