AMSOIL Performance Improver Gasoline Additive

Ideal for both fuel injected and carbureted systems. Dissolves and removes fuel system deposits and other contaminants for improved power and overall performance in gasoline engines. Reduces PCV and EGR system deposits. Reduces exhaust emissions (tests show up to 90 percent reduction). Improves engine idle, response and starting.

An initial clean-up dose of six ounces for ten gallons of gasoline restores up to 95 percent of an injector's original fuel flow. Periodic maintenance doses of one ounce for ten gallons of gasoline keep injectors and other fuel system components clean. Product Code: API

Performance Features

Cleans fuel injectors, intake valves and carburetors
Dissolves carbon and varnish deposits
Contains properties to control rust and friction
Reduces exhaust emissions
Increases fuel economy

AMSOIL Performance Improver Dissolves and Removes Fuel System Deposits
Concerns over the quality of gasoline sold in the U.S. have become prevalent in recent years, prompting the Assessment and Standards Division of the Environmental Protection Agency to take a look at the issue. In fact, one industry source indicates that a whopping 85 percent of all U.S. gasoline doesn’t contain sufficient amounts of deposit-control additives. In addition, many cheaper additives used by oil companies add to the deposit problem.

The accumulation of carbon and varnish deposits clog fuel injectors and restricts intake valve seating, leading to reduced fuel economy and increased exhaust emissions, and a dirty fuel system leads to slow starts, rough idle, increased hesitation and poor acceleration.

AMSOIL Performance Improver is a specially formulated gasoline additive designed to clean and maintain a vehicle’s entire fuel intake system. By dissolving and removing fuel system deposits and other contaminants, AMSOIL P.I. restores the original operating efficiencies of fuel injectors, intake valves, carburetor and other components. P.I. also prevents moisture accumulation and reduces friction and wear in the combustion chamber.

An initial clean-up dose of six ounces of P.I. for 10 gallons of gasoline restores up to 95 percent of an injector’s original fuel flow. Periodic maintenance doses of one ounce for 10 gallons of gasoline keep injectors and other fuel system components clean. One 16 oz. bottle cleans up to 160 gallons of gasoline.

Avoid Engine Knock With AMSOIL Performance Improver Gasoline Additive
We’ve all been there. You are driving in heavy traffic with the hot sun beating down. You are stuck behind a truck crawling uphill. You spot a tiny opening in the next lane and you make your move. But your car’s get up and go got up and left, and you crawled up the hill no faster than the truck you wanted to pass. What happened? How do you fix it?

What happened? Your cars knock sensor kicked in. More than half the cars sold in the U.S. are equipped with knock sensors, which retard timing when gasoline isn’t high enough to allow the engine to perform the task it has been asked to perform, such as passing, going uphill or motoring in high temperatures. Retarding ignition timing protects the engine from knock.

Most drivers are used to hearing the ping of knock, but not used to recognizing as the drop in power, responsiveness and performance that comes with knock sensors. The knock sensor adjusts timing before ping occurs. What you can do to protect your engine from knock and maintain the power and performance you want?

At first glance, you might think the answer would be higher octane fuel. It may improve performance. But it may also be an unnecessary drain on your pocketbook. If your engine knock is caused by fuel system deposits, higher octane fuel will not solve the problem. Octane defines a gasoline’s ignition point in a perfect world, with low octane gasoline igniting at lower temperatures and pressure than high octane gasolines do. But in the real world, deposits create hot spots that cause gasoline – of even the highest octane – to ignite prematurely and knock. Intake valve deposits soak up gasoline like sponges, and the heat of compression causes the deposits to ignite the fuel before the controlled flame touched off by the spark plug reaches it.

But wait a minute. Isn’t gasoline treated with detergents to control fuel system deposits? It sure is. But only at a treat-level that controls severe drivability problems, not garden variety knock. In fact, deposits begin forming immediately even with refinery-treated gasoline. The only way to combat them is with additional gasoline treatment.

That’s why you need AMSOIL Performance Improver Gasoline Additive. Performance Improver (PI) inhibits the tendency of gasoline to form fuel system deposits.

How does PI work?
PI keeps the entire fuel system clean, from fuel injectors or carburetors to combustion chambers. Clean injectors and carburetors deliver a full load of gasoline in a fine spray. Uniform, small droplets of spray help fuel burn completely, which improves performance. The full load of gasoline also keeps the gasoline-air ratio from becoming too lean. A too-lean mixture contains too much air for the amount of gasoline available. When combustion occurs in an environment with too much air, the combustion event is hotter than it would be in an environment without excess air. High temperatures encourage knock. Finally, a clean combustion chamber contains no knock-provoking hot-spots.

And here’s a bonus. The more readily and fully gasoline combusts, the lower the vehicle’s exhaust emissions and the better its fuel economy. Many grateful PI users have written to say that PI helped them pass emissions tests, saving them money on fines and repairs.

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