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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 or two-stroke engines.

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

  • 4 star rating
    It works
    By  PABeagler,  a  Verified Buyer  on  November 11, 2024
    Yes it works!!! I've got nothing bad to say about it other than it's a bit pricey in my opinion.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Seems to improve MPG on my daily driver
    By  ED,  a  Verified Buyer  on  November 11, 2024
    Like the title says, I’ve been using this in my daily driver…a VW Golf R that I put roughly 30k miles on per year. Since I’ve been using this on every other tank, my car has been averaging an extra 2-3 mpg versus without.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best in Class
    By  AMSOil User,  a  Verified Buyer  from  USA  on  November 11, 2024
    AMSOIL was recommended to me by family. I tried AMSOil in 1 of my vehicles and immediately noticed a performance improvement in response, idle, fuel economy, and noise reduction due to the engine having to work less to operate. Since trying AMSOil in August, I immediately signed up for their membership, moved all my vehicles lubricants over to AMSOIL, follow their maintenance schedule to spec, use their Upper Cylinder Lubricant on every fill up and exclusively use their products. Save time & Money, AMSOIL is the way to go.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Better MPG
    By  KESHAWN,  a  Verified Buyer  from  Va  on  November 09, 2024
    Helped my PowerWagon get an extra 2 mpg on highway I’ll take it.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Gas additive
    By  MICHAEL,  a  Verified Buyer  from  RGV Texas  on  November 08, 2024
    First time using this product and it does what it says. Noticed significant improvements in the first couple of miles. Sluggish acceleration went away, improved my gas mileage, and got rid of a ticking noise I thought were the rockers, turned out to be clogged fuel injectors. Great products. Customer for life!!!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Recommend
    By  GLENN,  a  Verified Buyer  on  November 06, 2024
    Works
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great
    By  MICHAEL,  a  Verified Buyer  from  Tn  on  November 02, 2024
    Very good service
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Every oil change
    By  LANCE,  a  Verified Buyer  from  St Augustine Fl  on  October 26, 2024
    I use this in my 24 Expedition Max Stealth Performance and 23 Bronco Raptor after each oil change- I only run 93 octane in both- this product is a must in my maintenance plan and both my vehicles run perfect!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Amsoil PI gas additive
    By  MELVIN,  a  Verified Buyer  from  Fort Macleod   on  October 25, 2024
    Engine runs quieter get better fuel mileage starts 100% in colder temperatures. Melvin shingar
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    P.I.Performance improver
    By  BILL,  a  Verified Buyer  from  WY  on  October 24, 2024
    Put it in a 2004 F250 V10. that I bought at auction with 146000 miles. fuel milage increased from intial less than 8 mpg to 10 mpg around town , get around 12mpg on highway.
    Bottom Line
    Yes, I would recommend this to a friend.
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