- Cleans dirty injectors
- Lubricates pumps and injectors to reduce wear
- Increases cetane up to 8 points – best cetane improvement on the market
- 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
Convenience and Cost Savings
AMSOIL Diesel Injector Clean + Cetane Boost is the ideal combination diesel fuel additive for climates that don’t require the cold-flow benefits of AMSOIL Diesel Cold Flow.Recommendations
AMSOIL Diesel Injector Clean + Cetane Boost is recommended for use with all types of heavy- and light-duty, on- or off-road and marine diesel engines. To prevent cold-weather fuel issues, add AMSOIL Diesel Cold Flow or switch to AMSOIL Diesel 4-in-1 and get the benefits of Diesel Injector Clean, Cetane Boost and Cold Flow all in one convenient package.
Note: The 16-oz. (473-ml) bottle treats up to 80 gallons (303 L). The 8-oz. (237-ml) bottle is specially formulated to treat up to 20 gallons (76 L) in one convenient dose.
This article is part of our Diesel Oil and Maintenance guide. See every article in the guide.









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AMSOIL Staff articles draw on the combined expertise of AMSOIL engineers, chemists, Technical Services specialists, technical writers and product marketers. Content is developed from AMSOIL data sheets, laboratory and field testing, oil-analysis results and more than 50 years of synthetic-lubricant development. Topics span automotive, diesel, powersports, marine, small-engine, agricultural and industrial equipment, covering lubrication fundamentals, maintenance practices, product selection and real-world customer experience.
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