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Increases octane up to three numbers for maximum power and efficiency. Designed to improve startup performance and eliminate engine ping or knock for increased power during low-rpm operation. Contains detergents that help combustion chambers and fuel-delivery systems maintain cleanliness for optimum performance. At recommended treat rate, does not harm catalytic converters or oxygen sensors.

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% * Reduces emissions --hydrocarbons (HC) up to 15% --carbon monoxide (CO) up to 26% --nitrous oxides (NOx) up to 17% * Restores power and performance * Reduces the need for costly higher octane fuel * Reduces noise from carbon rap and pre-ignition 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.

• Increases octane up to 4 numbers for improved performance • Maximizes power • Reduces engine knock • Improves ignition & responsiveness • Helps fuel burn more cleanly • Removes carbon deposits For off-road and racing use only. Increases octane up to four numbers. Helps reduce engine knock for maximum power, responsiveness and performance. INCREASES OCTANE UP TO 4 NUMBERS Significantly increases engine response and power in two- and four-stroke gasoline-fueled engines. Just one treatment reduces engine knock, improves ignition and helps fuel burn cleaner. Most users find one 12-ounce (354 mL) bottle for 15 gallons (57 litres) of gasoline provides the ideal performance increase. EXCELLENT LEAD SUBSTITUTE Excellent as a lead substitute in collector automobiles, older off-road equipment and pleasure vehicles.