About P.i. Performance Improver Gasoline Additive
P.i. Performance Improver Gasoline Additive is an option for fuel-system cleaning. Choose a treatment for the specific job you need done, and make sure its intended fuel and equipment match yours.
Before you choose
Use only as directed for gasoline applications. Do not use in diesel or two-stroke engines. Measure the amount against your tank capacity rather than estimating.
Can I use this in a different fuel type?
This selection is intended for gasoline applications identified by AMSOIL. Do not assume a gasoline and diesel additive are interchangeable. Check the current label for fuel compatibility, dosage, and handling instructions.
Product information reviewed September 7, 2026. Read AMSOIL’s current details.
