• For use in gasoline powered cars and trucks.
• Treats up to 30 gallons. Add entire bottle to tank up at fill-up
• For best results, clean your fuel system with P.i. every 4,000 miles.
• For large gas tanks, treat with two bottles of P.i. Using more than two bottles per treatment is not recommended.
• Safe for use with catalytic converters, oxygen sensors, oxygenated gas and up to 15% ethanol blended gas.
• Do not use with diesel or E85 fuel or two-stroke engines.