"How Long Will Your Oil Last?"

 

Site Last Updated: March 26, 2012

Site Navigation

Home

Contact Info & Race Videos

Please use my Customer/Tracking number (470077) for the links below when filling out the online forms.

AMSOIL Online Store

AMSOIL Online Application Guide

To Request a Free Product Catalog

To Become an AMSOIL Preferred Customer

For Information On Becoming a Dealer

To Sell AMSOIL In Your Store Or Purchase For Use In Your Business Equipment

Products by Type

Gasoline Engines

Diesel Engines

Motorcycle Oils

Racing Oils

2-Cycle Oils

4-Stroke & Marine

Transmission Fluids

Gear Lubes

Greases

Air Filters

Oil Filters

Motorcycle Oil Filters

Bypass Oil Filters

Compressor Oils

Hydraulic Oils

Fuel Additives

Brake Fluid

Power Steering Fluid

Antifreeze

Misc. Cleaners, Lubricants

Suspension Fluids

Useful Guides

Recommended Oil Drain Intervals Guide*

AMSOIL Motorcycle Lookup Guide*

2-Cycle Application Guide*

Recommended ATF, Gear Lube, Drain Interval Guide*

AMSOIL Air and Oil Filter Recommended Change Intervals*

Other Great Products

Altrum - Vitamins

AGGRAND - Fertilizers

Interesting Articles

Harley Owners Should Choose AMSOIL!!

"First In Synthetics"

AMSOIL An American Success

How Do I Know The Test Results Are Valid?

Why AMSOIL and not a brand name oil?

10 Myths About Synthetic Oils

Nothing Outperforms Mobil1? Wrong!!!

The Federal Trade Commission Cracks Down On Oil Additives

What About Oil Additives Like Slick 50 And Prolong?

409,000 Miles Without An Oil Change

Over 535,000 Miles Testimonial

 

 

 

P.i. Performance Improver (API)
P.i. Performance Improver Concentrate (API)
AMSOIL P.i. improved fuel economy by reducing port fuel injector deposits, intake valve deposits and combustion chamber deposits in 100% of the vehicles tested!

Reformulated for greater potency

Package sizes include:

12-oz. Bottle
12-oz. Bottles (case of 12)

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.

Click for larger view

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.

Click for larger view

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.

Click for larger view

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.

Click for larger view

Recommendations
Treat one full tank of gas every 4,000 miles or 100 hours of service. One bottle treats 20 gallons of gas. Do not treat and run more than 40 gallons of gas per treatment. P.i. helps pass emissions tests. Treat gas, run that tank and fill up again prior to test. Safe for use with catalytic converters, oxygen sensors, oxygenated gas and 10% 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.