P.i.® Restores up to 14% of Horsepower
AMSOIL P.i. is a potent, deep-cleaning gasoline performance improver featuring concentrated detergents that aggressively
clean stubborn, power-robbing deposits from injectors, valves and combustion chambers.
We set out to demonstrate the superior performance of P.i. through third-party testing by using a purchased 2016 Chevrolet
Silverado with 100,616 miles on the odometer. Prior to testing, the truck was run on a chassis dyno and measured for HP.
The 5.3L GDI engine was then disassembled, photographed and reassembled. After a single tank of of fuel treated with P.i.
driving at highway speeds, the truck was strapped back to the dyno. Astoundingly, the truck measured a 14% improvement
The engine was then disassembled once again to see the impact P.i. had on deposits. These testing images show the powerful
cleaning performance of P.i on injectors, cylinder heads and spark plugs to significantly restore power and efficiency.
P.i. cleans your entire fuel system and restores up to 14% horsepower* in one tank of gasoline.
- Reduces need for costly higher-octane fuel
- Reduces noise from carbon rap and pre-ignition
- Restores power and performance
- Controls pre-ignition “knock”
- Improves fuel economy
- Capless compatible
*Based on third-party testing in a 2016 Chevrolet* Silverado* 1500, 5.3L V-8 GDI with 100,616 miles, using one tank treated with AMSOIL P.i. Actual results may vary. *All
trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim,
express or implied, is made by their use.