AMSOIL Diesel Cetane Boost
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Serious Performance Boost
AMSOIL Diesel Cetane Boost raises the cetane number of diesel fuel up to eight points for maximum horsepower, increased fuel economy and easier starts in all diesel engines. Diesel engines operate best on fuel with cetane values of 50 or higher. Most diesel fuel sold in North America has a cetane value of 40-45.
Key Benefits
- Increases cetane up to 8 points
- Delivers maximum horsepower
- Increases fuel economy
- Improves startability
- Smooths idle
- Reduces smoke & emissions
- Safe for use in all diesel fuels, including biodiesel
- Alcohol-free
Improves Fuel Quality for Peak Performance
Fuel with a higher cetane number provides for a more complete burn, resulting in improved performance. By increasing cetane, AMSOIL Cetane Boost improves the ignition quality of diesel fuel, maximizing available power and improving starting. It also smooths idle and reduces smoke and emissions.
Applications
AMSOIL Cetane Boost is recommended for use in all types of heavy- and light-duty, on- and off-road and marine diesel engines. Best performance is achieved when used with every tank of fuel. Excellent for use with ultra-low-sulfur diesel fuel (ULSD). Compatible with biodiesel and all types of exhaust emission systems, including diesel particulate filters (DPFs). Add before filling tank. Excellent for use with AMSOIL Diesel Injector Clean and AMSOIL Diesel Cold Flow.
Treat rates:
- 1 oz / 10 gal or 3 oz / 30 gal or 8 oz / 80 gal = 4-point cetane increase
- 1 oz / 5 gal, 2 oz / 10 gal, 6 oz / 30 gal, or 16 oz / 80 gal = 8-point cetane increase
Pros and Cons
Pros
- Increases cetane up to 8 points
- Delivers maximum horsepower
- Increases fuel economy
- Improves startability
- Smooths idle
- Reduces smoke & emissions
- Safe for use in all diesel fuels, including biodiesel
- Alcohol-free
Cons
- Premium Investment: Higher initial cost compared to conventional or "shelf-brand" synthetic oils.
- Limited Local Retail: Primarily available through authorized dealers and specialized synthetic outlets. National Synthetics is a local stocking dealer. Call 1-678-944-8816 to confirm in-stock items for same-day local pickup.
Order Through Your Independent AMSOIL Dealer
Order AMSOIL Diesel Cetane Boost through your independent AMSOIL Dealer. Preferred Customer members save up to 25% on all AMSOIL products.
Independent AMSOIL Dealer #1858536
Shipping & Returns
Fast, Reliable Shipping
- Free standard ground shipping on orders of $100 ($130 in Canada) or more.
- Orders under the threshold ship for a flat $9.99 ($12.99 in Canada) freight charge.
- In-stock items typically delivered in two to three business days.
- U.S. and Canada only — no shipments to PO Boxes.
30-Day Return Policy
- Return unopened, currently marketed products within 30 days for a full refund (minus freight).
- Exchange unopened products within 90 days with no restocking fee.
- Special-order items are non-returnable.
- Returns are handled directly by AMSOIL.
Frequently Asked Questions
AMSOIL Diesel Cetane Boost raises the cetane number of diesel fuel by up to 8 points (depending on treat rate). Diesel engines operate best on fuel with a cetane value of 50 or higher; most diesel fuel sold in North America has a cetane value of 40-45.
Yes. AMSOIL Diesel Cetane Boost is compatible with biodiesel and all types of exhaust emission systems, including diesel particulate filters (DPFs). It is excellent for use with ultra-low-sulfur diesel fuel (ULSD).
For a 4-point cetane increase, use 1 oz per 10 gal, 3 oz per 30 gal, or 8 oz per 80 gal. For an 8-point cetane increase, use 1 oz per 5 gal, 2 oz per 10 gal, 6 oz per 30 gal, or 16 oz per 80 gal. Add before filling the tank.
Yes. AMSOIL Diesel Cetane Boost is excellent for use with AMSOIL Diesel Injector Clean and AMSOIL Diesel Cold Flow. For all-season convenience in one dose, AMSOIL Diesel 4-IN-1 combines all three benefits.
Independent AMSOIL Dealer #1858536. Product information sourced from AMSOIL. Visit AMSOIL.com for the most current product details and availability.