AMSOIL PI improved fuel economy by reducing port
fuel injector deposits, intake valve deposits and combustion chamber
deposits in 100% of the vehicles tested!
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:
AMSOIL PI 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 PI helps maintain peak
engine efficiency, fuel economy, power and drivability in newer
low mileage engines. In engines with accumulated deposits, testing
showed AMSOIL PI 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 PI 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.
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.
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.
Maximum Fuel Economy
AMSOIL PI maximizes fuel efficiency by dissolving
and removing fuel system deposits and other contaminants for improved
power and overall performance.
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.
PI 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.
