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P.i. Performance Improver Gasoline AdditiveHelp

P.i. Performance Improver Gasoline Additive Product Image
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$12.80 Retail Price (USD)
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Product Code: APICN-EA
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P.i. improves fuel mileage an average of 2.3% and up to 5.7%. Reduces emissions such as hydrocarbons (HC) up to 15%, carbon monoxide (CO) up to 26% and nitrous oxides (NOx) up to 17%. Restores power and performance. Reduces the need for costly higher octane fuel. (API)

Untreated Fuel Leads to Poor Engine Performance
A vehicle demonstrates its best efficiency and engine performance when it is new. As the engine ages, its performance suffers from gasoline fuel-generated deposits that form on the fuel injectors, intake valves and combustion chamber. Additives are required to control deposit formation.

Today’s fuels, however, lack sufficient treatments of either enough additives or high quality additives. Fuel system deposits result in the following:

  • Lost fuel economy
  • Lost power and poor throttle response
  • Failed emission tests
  • Poor drivability - surging, hesitation, stalling, rough idle
  • Engine knocking (pinging) and rap
  • Difficult starts

Treated Fuel Delivers Maximum Performance
AMSOIL P.i. is the most potent gasoline additive available today. As a concentrated detergent, it is unsurpassed in cleaning combustion chamber deposits, intake valve deposits and port fuel injector deposits. AMSOIL P.i. helps maintain peak engine efficiency, fuel economy, power and drivability in newer low mileage engines. In engines with accumulated deposits, testing showed AMSOIL P.i. provided the following clean-up benefits after only one tank of gasoline:

  • Improves fuel mileage an average of 2.3% and up to 5.7%
  • Reduced emissions
    • hydrocarbons (HC) up to 15%
    • carbon monoxide (CO) up to 26%
    • nitrous oxides (NOx) up to 17%
  • Restored power and performance
  • Reduced need for costly higher octane fuel
  • Reduced noise from carbon rap and pre-ignition
  • Better drivability
  • Smoother operation

AMSOIL P.i. works as an “emissions passer.” It is ideal for use prior to emissions inspections.

Unsurpassed Deposit Clean-up
Port Fuel Injector Deposits form after the engine has been shut down and there is no gasoline flowing through the injectors. During this “hot soak” period the injectors heat up and the gasoline remaining in the injectors degrades and forms deposits. This can happen very quickly with the use of poor quality gasoline and short trip driving. Because the clearances within the injectors are extremely tight and injectors must deliver precise amounts of “atomized” fuel, even small amounts of deposits can cause injectors to malfunction. Fuel flow is reduced and spray patterns are disrupted, decreasing engine efficiency, power and fuel economy, while increasing exhaust emissions.

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Intake Valve Deposits form on the intake side or back side of the valves. As deposits increase, they restrict airflow and alter airflow patterns in the cylinder. The deposits disrupt the balanced air/fuel ratio by momentarily absorbing and releasing fuel, and they can cause valve sticking by getting in the way of the valve stem and guide. Deposits also restrict proper seating, and the valves may be burned. Intake valve deposits cause lost engine power, increased emissions, poor engine efficiency and potential valve failure.

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Combustion Chamber Deposits form on the top of the pistons and on the cylinder heads. They increase compression and absorb heat during combustion to later release it during the intake cycle. In some engines with tight squish domes, combustion chamber deposits cause the piston to actually hit the cylinder head. This is referred to as combustion chamber deposit interference or “carbon rap.” Combustion chamber deposits also flake off as they get large, and these flakes can get trapped between the valves and valve seat, resulting in compression loss, difficult starting and rough idle.

Higher compression and stored heat cause increased intake fresh charge temperatures and the increased likelihood of pre-ignition “knock” or “pinging” when the fuel spontaneously combusts prior to spark ignition. This increases emissions and may cause engine damage. Many of today’s cars have “knock” sensors that adjust spark timing to prevent knock.

Although audible knock is controlled, power is lost from retarded timing. Higher octane fuels of 4-5 octane numbers can be used to help prevent knock, an effect called “octane requirement increase.”As a vehicle ages, more-expensive,
higher-octane fuel is needed to keep it operating at peak performance. By cleaning combustion chamber deposits, knock is controlled, power is restored, fuel economy increases and higher-octane fuels are less necessary for peak performance.

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Maximum Fuel Economy
AMSOIL P.i. maximizes fuel efficiency by dissolving and removing fuel system deposits and other contaminants for improved power and overall performance.

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Recommendations
Treat one full tank of gas up to 20 gallons with one bottle of P.i. For very large gas tanks, partially fill to 40 gallons and treat with two bottles of P.i. Using more than two bottles per treatment is not recommended. Treat gas every 4,000 miles of service (or 100 hours for marine, stationary and off-road gasoline-powered engines). P.i. helps pass emission tests by running one tank of treated fuel through the engine prior to testing. Safe for use with catalytic converters, oxygen sensors, oxygenated gas and 10 percent ethanol blended gas. Not recommended for two-cycle engines.

DANGER: Combustible. Harmful or fatal if swallowed. Harmful if inhaled. Skin and eye irritant. Read precautions on container before use.

API Package Sizes
Code Package Size Unit of Measure Product
APICN (APICN-EA) 12-Oz. Each PI Performance Improver Concentrate
APICN (APICN-CA) 12-Oz. Case of 12 PI Performance Improver Concentrate
More about AMSOIL Reviews

REVIEW SNAPSHOT®

by PowerReviews
AMSOILGasoline Stabilizer
 
4.8

(based on 26 reviews)

Ratings Distribution

  • 5 Stars

     

    (21)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

96%

of respondents would recommend this to a friend.

Most Liked Positive Review

 

Winter storage of my 2014 BMW motorcycle

Living in Washington State, I don't ride my 2014 BMW R1200RT-LC year round so I leave it in the garage hooked up to a Battery Tender, and the gas tank filled with Pure Gas...Read complete review

Living in Washington State, I don't ride my 2014 BMW R1200RT-LC year round so I leave it in the garage hooked up to a Battery Tender, and the gas tank filled with Pure Gas AND 3 oz. of Amsoil's Gasoline Stabilizer. Every summer when I start up my bike there is little hesitation, and the engine settles down to a steady idle. Riding that first tank shows no problems or misses in any RPM range, though I don't get the full mileage of 300 miles, but with the very next tank of gas things are back to normal.

VS

Most Liked Negative Review

 

WHERES THE P.I.?

I put the product in my 2007 Chevrolet Tahoe with 140,000 miles. I did not notice a difference at all. I have used multiple Amsoil products but ill probably never use this one...Read complete review

I put the product in my 2007 Chevrolet Tahoe with 140,000 miles. I did not notice a difference at all. I have used multiple Amsoil products but ill probably never use this one again.

Reviewed by 26 customers

Displaying reviews 1-10

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5.0

I was hesitate at first but was glad I bought

By 

from bucks county

Verified Buyer

Comments about P.i. Performance Improver Gasoline Additive:

Great product. Unbelievable.

  • How would you describe yourself?:
  • I love my vehicles / toys
  • What kind of vehicle/equipment do you have?:
  • Volkswagen 2005 TDI 2004 Ford Explorer
 
5.0

gasoline stabilier

By 

from hutchinson.mn.

Verified Buyer

Comments about Gasoline Stabilizer:

I use this product in my gas for my small engine equipment around the farm, it works very well in stablizing the gas and i thinks heips the equipment run better as well.

  • How would you describe yourself?:
  • I'm a DIY handyman
  • What kind of vehicle/equipment do you have?:
  • mower snoblower, weed eatter, chainsaws

(0 of 1 customers found this review helpful)

 
5.0

Winter storage of my 2014 BMW motorcycle

By 

from Olympia WA

Verified Buyer

Pros

    Cons

    • I wished they had small applicator bottles

    Best Uses

    • Long term winter storage of my motorcycle

    Comments about Gasoline Stabilizer:

    Living in Washington State, I don't ride my 2014 BMW R1200RT-LC year round so I leave it in the garage hooked up to a Battery Tender, and the gas tank filled with Pure Gas AND 3 oz. of Amsoil's Gasoline Stabilizer. Every summer when I start up my bike there is little hesitation, and the engine settles down to a steady idle. Riding that first tank shows no problems or misses in any RPM range, though I don't get the full mileage of 300 miles, but with the very next tank of gas things are back to normal.

    • Was this a gift?:
    • No
    • How would you describe yourself?:
    • I love my vehicles / toys
    • What kind of vehicle/equipment do you have?:
    • BMW R1200RT-LC motorcycle
     
    5.0

    Great stuff

    By 

    from Canada

    Verified Buyer

    Comments about DOMINATOR Octane Boost:

    Great stuff for dirtbike

    • How would you describe yourself?:
    • I love my vehicles / toys
     
    5.0

    motorcycle octane boost

    By 

    from alabama

    Verified Buyer

    Comments about Motorcycle Octane Boost:

    excellent product

    • How would you describe yourself?:
    • I'm a DIY handyman
    • What kind of vehicle/equipment do you have?:
    • cars trruck and motorcycle
     
    5.0

    A must for living in a remote location...

    By 

    from Sunshine Coast, BC Canada

    Verified Buyer

    Comments about Gasoline Stabilizer:

    I trust Amsoil products, after using them for so many years. Our gasoline gets delivered by barge and then trucked to us. It's always got visible crud in it and I have to put it through a filter first. As soon as I get my gasoline, I filter it and add Amsoil Gasoline Stabilizer. While others in the area have had numerous problems with 'bad gas,' my gasoline has never let me down. It gets used in my Stihl saws, Echo yard equipment, my Polaris Ranger, my portable Honda generator, my Ariens wood splitter, etc. Never a problem.

    • How would you describe yourself?:
    • I love my vehicles / toys
    • What kind of vehicle/equipment do you have?:
    • As mentioned in the narrative.
     
    4.0

    Great additive for todays Fuel

    By 

    from North Carolina

    Verified Buyer

    Comments about Quickshot:

    I drive a BMW and the last thing I want is a problem with the Fuel System. SO add this fuel additive to a Tank every so often and troubles stay away

    • How would you describe yourself?:
    • I love my vehicles / toys
    • What kind of vehicle/equipment do you have?:
    • BMW 135is
     
    4.0

    P.l.

    By 

    from Edison Ne

    Verified Buyer

    Comments about P.i. Performance Improver Gasoline Additive:

    I like this product!

    • How would you describe yourself?:
    • I'm a DIY handyman
    • What kind of vehicle/equipment do you have?:
    • Chevrolet suburban
     
    5.0

    HIGH QUALITY FUEL SYSTEM AND COMBUSTION CHAMBER CLEANER

    By 

    from Dumas, Texas

    Verified Buyer

    Comments about P.i. Performance Improver Gasoline Additive:

    I recommend AMSOIL p.I. cleaner to anyone to clean the engine combustion chamber and fuel injectors or carburetor of a gasoline engine. I've used this exact product on a recommended vehicle maintenance schedule for many years. There is a very noticeable difference to prevent engine from knocking by cleaning the carbon from the combustion chamber. I use this in a Ford truck, Pontiac car and a Kawasaki motorcycle. Highly recommended above any product of its kind is AMSOIL p.I.

    • How would you describe yourself?:
    • I love my vehicles / toys
    • What kind of vehicle/equipment do you have?:
    • Ford Ranger, Pontiac Grand Am, Kawasaki
     
    5.0

    I do buy this product over and over again

    By 

    from Harleyville,SC

    Verified Buyer

    Comments about P.i. Performance Improver Gasoline Additive:

    Before I started using this product (P.I.) my 2006 Toyota Tacome was getting about 19 - 20 MPG. When I use this product it moves easily to 20-22 MPH. It must be doing something good. However, I must admit to using exclusively Amsoil Signature oil.

    • How would you describe yourself?:
    • I love my vehicles / toys
    • What kind of vehicle/equipment do you have?:
    • F150,Concours,Tacoma,Torrent,V-Star 650

    Displaying reviews 1-10

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