AMSOIL Diesel Injector Clean + Cetane Boost
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Defend Your Diesel
AMSOIL Diesel Injector Clean + Cetane Boost combines the superior detergency and improved lubricity of AMSOIL Diesel Injector Clean and the increased horsepower and cetane of AMSOIL Cetane Boost in one convenient package. Diesel Injector Clean + Cetane Boost is specially engineered to defend your engine and fuel system against performance-robbing wear and deposits. Its concentrated formula provides dependable protection in warm weather. One dose delivers outstanding detergency, improved lubricity and higher cetane. It is safe for use in all diesel fuels, including biodiesel.
Key Benefits
- Cleans dirty injectors
- Lubricates pumps and injectors to reduce wear
- Increases cetane up to 8 points
- Extends fuel-filter life
- Improves fuel economy up to 8%
- Combats fuel-system corrosion
- Delivers maximum horsepower
- Safe for use in all diesel fuels, including biodiesel
- Alcohol-free
Proven Performance
Restores Horsepower & Improves Fuel Economy. In high-pressure common-rail systems, injection pressures can be 30,000 psi and higher and injector clearances are as tight as 1-3 microns (a human hair is typically 70-100 microns thick). Even minimal internal diesel injector deposits can lead to sticking and seizure, reducing power, fuel economy and operability. Diesel Injector Clean + Cetane Boost features advanced chemistry that targets internal diesel injector deposits and traditional carbonaceous deposits, helping restore horsepower and operability to like-new condition.
Lubricates Pumps & Injectors. Ultra-low-sulfur diesel fuel (ULSD) provides significantly reduced lubricity. AMSOIL Diesel Injector Clean + Cetane Boost adds back the lubricity the fuel pump and injectors need, reducing wear and improving service life.
Improves Fuel Quality. By increasing cetane, AMSOIL Diesel Injector Clean + Cetane Boost improves the ignition quality of diesel fuel, maximizing available power and improving starting. It also smooths idle and reduces smoke and emissions.
Extends Filter Life. Effectively protects against carbonaceous deposits that collect in the fuel filter, extending fuel filter life.
Applications
Use AMSOIL Diesel Injector Clean + Cetane Boost in all types of heavy- and light-duty, on- or off-road and marine diesel engines. Add before filling tank. For initial use, follow the clean-up recommendation. For subsequent uses/regular treatment, follow the maintenance recommendation. To prevent cold-weather fuel issues, add AMSOIL Diesel Cold Flow or switch to AMSOIL Diesel 4-IN-1.
Treat rates (16-oz, 64-oz and larger package sizes):
- Clean-up: 2 oz of additive per 5 gal fuel (8-point cetane increase)
- Maintenance: 1 oz of additive per 5 gal fuel (4-point cetane increase)
Treat rates (8-oz size):
- Clean-up: 2 bottles per up to 20 gal fuel (8-point cetane increase)
- Maintenance: 1 bottle per up to 20 gal fuel (4-point cetane increase)
Pros and Cons
Pros
- Cleans dirty injectors
- Lubricates pumps and injectors to reduce wear
- Increases cetane up to 8 points
- Extends fuel-filter life
- Improves fuel economy up to 8%
- Combats fuel-system corrosion
- Delivers maximum horsepower
- 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 Injector Clean + 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 Injector Clean + Cetane Boost is engineered for warm-weather protection. In cold weather, AMSOIL recommends adding AMSOIL Diesel Cold Flow or switching to AMSOIL Diesel 4-IN-1 for combined warm- and cold-weather protection.
Use in all types of heavy- and light-duty, on- or off-road and marine diesel engines. It is safe for use in all diesel fuels, including biodiesel.
For the 16-oz, 64-oz and larger package sizes: initial clean-up is 2 oz per 5 gallons (delivers an 8-point cetane increase); regular maintenance is 1 oz per 5 gallons (delivers a 4-point cetane increase). For the 8-oz bottle size, initial clean-up is 2 bottles per up to 20 gallons and maintenance is 1 bottle per up to 20 gallons.
Fuel economy improvements of up to 8% are possible when keeping injectors clean and restoring proper spray pattern.
Customer Reviews
See all 178 reviewsAMSOIL Diesel Injector Clean + Cetane Boost Fuel Additive
I have been using this in my truck for years, and I believe it has helped prevent many of the issues that some 6.0 Powerstrokes were known for. I am a die-hard Amsoil user.
Independent AMSOIL Dealer #1858536. Product information sourced from AMSOIL. Visit AMSOIL.com for the most current product details and availability.