Diesel Injector Clean + Cetane Boost

Diesel Injector Clean + Cetane Boost

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.

(Product Code ADS)

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Restores Horsepower & Improves Fuel Economy

Fuel injector deposits interrupt spray patterns, causing poor fuel atomization, incomplete combustion, excessive emissions and smoke. High-pressure common-rail fuel systems are becoming commonplace as vehicle manufacturers attempt to produce more power while still meeting tightening emissions standards. In high-pressure common-rail systems, injection pressures can be 30,000 psi and higher to atomize the fuel into a fine mist for more efficient combustion, yielding increased power and fuel economy while reducing emissions. To maintain these high pressures, injector assemblies are highly engineered, with clearances as tight as 1-3 microns (a human hair is typically 70-100 microns thick). Even minimal internal diesel injector deposits on the injector pintle or other components can lead to sticking and even seizure, reducing power, fuel economy and operability. Traditional additive chemistry is not designed to address these tough-to-remove deposits.

Diesel Injector Clean + Cetane Boost features advanced chemistry that delivers concentrated strength to target internal diesel injector deposits and traditional carbonaceous deposits, helping to restore horsepower and operability to like-new condition. Acceleration is improved and, with regular use, Diesel Injector Clean + Cetane Boost continues to enhance performance by keeping injectors clean. The net savings on fuel can result in no additional cost of ownership.

  • 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
  • Special 8oz size blended for passenger car diesels.

Four sizes to choose from.

  1. 5-gallon
  2. 1/2 gallon (treats up to 320 gallons) Also order in a case of 6
  3. 16 ounce (treats 80 gallons) Also order in a case of 12
  4. 8 ounce (treats 20 gallons) – special passenger car formulation available in a case of six

Lubricates Pumps & Injectors to Reduce Wear

Ultra-low-sulfur diesel fuel (ULSD) provides significantly reduced lubricity – a critical property in controlling wear in fuel pumps and injectors. Diesel Injector Clean + Cetane Boost adds back the lubricity the fuel pump and injectors need, reducing wear, improving service life and saving time and money on maintenance costs.

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, 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.

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Extends Filter Life

diesel fuel filter flow improvedModern diesel engines run hot, raising the temperature of the fuel returned to the tank and causing carbonaceous deposits that collect in the fuel filter (see picture), plugging it and causing premature failure issues. AMSOIL Diesel Injector Clean + Cetane Boost effectively protects against deposits, extending fuel filter life.


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. Add before filling tank. Initial use: follow clean-up recommendation. Subsequent uses/regular treatment: follow maintenance recommendation. To prevent cold-weather fuel issues, add AMSOIL Diesel Cold Flow or switch to AMSOIL Diesel All-In-One.

Use this treat rate chart for the 16-oz., 64-oz. and larger package sizes of AMSOIL Diesel Injector Clean + Cetane Boost

2 oz. of additive
8-point cetane increase
1 oz. of additive
4-point cetane increase
5 gal.

Use this treat rate chart for the 8-oz. size of AMSOIL Diesel Injector Clean + Cetane Boost.  Order Code (ADSPCN) Special Car Formulation.

2 Bottles
8-point cetane increase
1 Bottle
4-point cetane increase
Up to 20 gal.


AMSOIL products are backed by a Limited Liability Warranty. For complete information visit www.amsoil.com/warranty.aspx.