AMSOIL P.I. Performance Improver Gasoline Additive 12 Oz. Prochoice - Detailing Tools **Noise reduction value is relative

**Noise reduction value is relative (or may vary) due to various noise-measuring methods used and external conditions at different racetracks

MAG 1 Full Synthetic 5W-40 is technologically advanced heavy duty diesel engine oil that provides unsurpassed protection and performance

Proprietary friction modifier maximizes horsepower & torque

old and faded

dry performance

AMSOIL P.I. Performance Improver Gasoline Additive 12 Oz. Prochoice - Detailing Tools **Noise reduction value is relativePERFORMANCE IMPROVER AMSOIL P. i. is a potent gasoline performance improver with concentrated detergent that aggressively cleans stubborn, power robbing deposits from injectors, valves and the combustion chamber. Effective in port and direct injection systems. Bottle compatible with capless fuel systems. Cleans entire fuel system in one tank of gasoline. For use with cars and trucks. Treats up to 30 gallons. Add entire bottle to tank at fill up. For