Free AR6400-D Diesel Fuel System Cleaner

Free AR6400-D Diesel Fuel System Cleaner

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AR6500 is compatible with all diesel vehicles and equipment, including Power Stroke, Cummins, Duramax, European diesel cars and SUVs, light- and medium-duty trucks, heavy equipment, agricultural equipment, commercial vehicles, and Class 8 tractor-trailers.

AR6500 can be used in pre-emissions, emissions-equipped, and deleted diesel engines and is compatible with ULSD, renewable diesel, and biodiesel blends.

Clean, restore and boost the entire fuel system

AR6500 upgrades the quality of diesel fuel at every fill-up by providing a strong cetane boost, enhanced lubricity and a powerful detergent package.

AR6500 maintains clean injectors, and unlike other diesel additives, keeps your turbo and DPF free from carbon build-up.

Add at every fill-up to:

  • Improve combustion efficiency
  • Increase fuel economy
  • Reduce DPF regeneration
  • Protect the fuel system
  • Extend component life

Boost cetane to increase power and response

Most diesel engines require fuel with a cetane number (CN) of 48-50 to operate efficiently but fuel in the US typically has a CN of 40-45. A low CN results in poor combustion, causing soot deposits and carbon build-up in key fuel system components.

AR6500's cetane boost of up to 8 points is greater than other products on the market, helping to:

  • Improve combustion efficiency
  • Enhance fuel economy
  • Increase power and performance
  • Extend component life

Improve lubricity to extend fuel system life

Lack of lubrication in diesel fuel is a major issue for both older and newer vehicles, leading to excessive wear, costly repairs and potential failure of components including injectors and pumps.

AR6500 has been independently tested to reduce wear by 43%, reducing friction and wear on the fuel system in order to:

  • Protect engine components
  • Reduce maintenance costs
  • Improve engine reliability
  • Extend component lifespan

Clean injectors and restore spray patterns

Over time, carbon deposits form on diesel injectors. Dirty injectors can’t spray fuel into the engine correctly, leading to incomplete combustion and wasted fuel.

AR6500 not only keeps injectors clean but by increasing cetane and improving combustion, helps prevent further build-up of deposits.

  • Improve fuel atomization
  • Reduce carbon deposits
  • Enhance fuel economy

Keeps the DPF clean and reduces regen frequency

Carbon build-up in the Diesel Particulate Filter (DPF) reduces engine performance, lowers fuel economy, and leads to increased regeneration frequency.

AR6500's proprietary chemistry cleans the system and will:

  • Reduce regeneration frequency
  • Restore MPG & performance
  • Prevent DPF-related engine damage
  • Increase DPF lifespan

Prevent turbo failure and restore boost

A dirty turbo restricts airflow, leading to reduced engine efficiency, increased fuel consumption, and turbo lag. Carbon deposits can also cause overheating and potential failure, resulting in costly repairs.

By cleaning the system, AR6500 will:

  • Reduce turbo lag
  • Restore boost
  • Minimize wear and damage
  • Restore optimal temperature
  • Improve airflow efficiency

AR6500 FAQs

AR6500 is compatible with all diesel vehicles and equipment, including Power Stroke, Cummins, Duramax, European diesel cars and SUVs, light- and medium-duty trucks, heavy equipment, agricultural equipment, commercial vehicles, and Class 8 tractor-trailers.

AR6500 can be used in pre-emissions, emissions-equipped, and deleted diesel engines and is compatible with ULSD, renewable diesel, and biodiesel blends.

Regular use of AR6500 will protect your fuel system and post-combustion system while boosting cetane and lubricity. By improving the quality of the diesel you are using you will prevent performance loss over time and extend the life of your engine and fuel system components, reducing maintenance costs over time.

Yes.AR6500 boosts cetane, cleans injectors, and improves fuel lubricity, leading to more efficient combustion, better throttle response, and reduced wear on your engine and fuel system.

By keeping injectors clean and increasing cetane, you'll also create fewer deposits over time, reducing maintenance and improving overall performance.

AR6500 improves lubricity in fuel, cleans and maintains the fuel system and adds cetane for a boost that can be felt at every fill-up.

AR6400-D is a highly concentrated one-tank fuel system cleaner to be used every 5,000 miles for rapid cleaning of heavy carbon build-up.

When using AR6400-D, we recommend running it in a tank on its own, then following up with AR6500 from the next fill-up onwards.

AR6500 will remain stable for 2 years if kept away from sources of heat and sunlight.

No, AR6300 Winter Diesel Treatment is the product you need for cold weather. AR6300 contains all the benefits of AR6500 plus anti-gel protection up to -44ºF.

Add AR6500 to the fuel tank at every fill-up at 1 oz per 10 gallons of diesel.

For best results, use a Power Boost dose (2 oz per 10 gallons) in your first tank.

Archoil products will not void your warranty. AR6500 is used by owners of trucks in and out of warranty every day. If you have any specific warranty concerns, please consult your vehicle manual.