About Diesel 4-IN-1 Fuel Additive
Diesel 4-IN-1 Fuel Additive is an option for diesel fuel treatment. Choose a treatment for the specific job you need done, and make sure its intended fuel and equipment match yours.
Before you choose
Use the label’s temperature-specific treatment guidance and confirm your fuel application. Measure the amount against your tank capacity rather than estimating.
Can I use this in a different fuel type?
This selection is intended for diesel 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.
