Official AMSOIL product image. Packaging may vary.
AMSOIL Diesel Cetane Boost Fuel Additive
Targeted cetane improver for diesel ignition quality.
- AMSOIL reports up to eight cetane points
- Helps starting and idle quality
- Compatible with biodiesel and DPF-equipped exhaust systems
Dealer link · U.S. & Canadian customers · Price and stock confirmed at AMSOIL.
Request a free AMSOIL catalog.
Review the product options before deciding. Online catalog requests use my low dealer number, ZO 313120. For a printed copy, email me.
Use and treatment rate
Add before refueling. Bulletin: 1 fl oz per 10 US gallons for a four-point increase; 2 fl oz per 10 gallons for an eight-point increase.
Use the current package label and official directions. Rates below are in U.S. gallons; Canadian buyers should follow the metric label.
Package options
16 oz, 64 oz, 5 gallon pail, 55 gallon drum. Availability varies.
Your questions, answered.
How much do you need?
Choose the product and package chart first. All fuel amounts are per vehicle or tank; the fleet count multiplies the result.
Measured dose
Diesel Recovery: five emergency steps
A new fuel filter restores full power faster. Follow the current bulletin and the vehicle’s filter-service instructions.
Choose a targeted cetane treatment
Start with the specific goal you are trying to achieve. A cetane treatment is a different purchase decision from injector cleaning or cold-flow preparation. Before combining products, compare their functions and official instructions so you are not duplicating a treatment simply because the bottles look different.
Compare the alternatives
- AMSOIL Diesel Injector Clean + Cetane Boost Fuel Additive
- AMSOIL Diesel Cold Flow Fuel Additive
- AMSOIL Diesel 4-IN-1 Fuel Additive
See the complete additive comparison table to separate anti-gel prevention, recovery and routine fuel care.
Who uses this?
Which diesel treatment do I need?
Answer up to three questions about gelled fuel, cold-weather protection and routine fuel care.
Find my treatment