AR6400-D Diesel Fuel System Cleaner

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  • Regular price $19.95

Customer Reviews

Based on 168 reviews

Awesome Product

Fantastic Product

Great product - ran one bottle through my 7.3 and immediately noticed a marked difference in easier starts and smoother running.

I feel the need for speed

I’ve had quite a few diesel trucks over the years. I just added Archoil to my 6.0 and WOW! what a difference it made in the startup as well as the smooth power. Now it drives better than ever!

Preview of things to come...

I didn’t start using this product right away because I wanted to put it in on a emptier tank. To this point I have noticed a little smoother running engine. My truck doesn’t like cold weather but seems to run smoother and warm up faster since putting it in. I have only got 193288 miles on it. It’s a 2005 F350 Lariat Long bed Single Rear 6.0 4x4. If it’s anything like the other Archoil products I have used I kinow I will like it.

6.0 Diesel

I’ve been using Archoil products for many years now in my 2004 Ford 6.0 Liter diesel . I have over 130,000 miles on it and still running all original injectors.. the motor runs fine but the body is rotting away.

Essential for All Diesel Owners

This new Archoil product restores performance and improves fuel economy in your truck by removing carbon build-up from the key fuel system components.

Please note: AR6400-D does not fix HEUI injector stiction - please use Archoil AR9100 Friction Modifier to eliminate stiction.


Archoil AR6400-D Diesel Fuel System Cleaner is absolutely crucial to the longevity of the engine and the fuel injection system in all Power Strokes.

- Bill Hewitt

AR6400-D Diesel Fuel System Cleaner

Treats 40 gallons of diesel. Use every 3,000-5,000 miles.

AR6400-D Benefits

  • AR6400-D removes carbon build-up from injectors and injector tips to ensure correct spray patterns. This leads to restored performance and improved fuel economy.
  • AR6400-D's unique formulation removes carbon from post-combustion components including the turbo and DPF
  • AR6400-D eliminates harmful turbo deposits which cause lag and less boost. Use of AR6400-D results in unrestricted movement of the turbo/variable vanes to avoid issues with excess heat and wear
  • AR6400-D improves combustion which benefits the EGR with a reduction in carbon accumulation
  • AR6400-D's powerful chemistry cleans the DPF and reduces regen cycles
  • AR6400-D is suitable for use in all diesel engines

The Real Deal Kit

The Archoil Real Deal Kit for diesel vehicles includes Archoil's newly-developed AR6500 Diesel Treatment 33oz, AR9100 Friction Modifier 16oz and AR6400-D Diesel Fuel System Cleaner 12oz.

This is the must-have kit for your diesel vehicle. AR9100 eliminates stiction and associated cold start problems while AR6500 provides regular maintenance to your fuel system at every fill-up, combating issues associated with poor quality diesel. AR6400-D provides a powerful, one-tank cleaning service to remove harmful carbon build-up from the fuel system.

The Real Deal Kit Benefits

  • AR9100 eliminates hard/cold start issues caused by HEUI injector misfires in 6.0L & 7.3L Power Strokes
  • AR9100 forms a solid boundary lubricating film to improve performance and protect engines, gearboxes and hydraulic systems
  • AR6500 Fuel Treatment boosts performance, ensures fuel quality and maintains your fuel system
  • AR6500 promotes a more complete combustion which improves efficiency, power and response
  • AR6400-D rapidly removes carbon build-up from the injectors, turbo and DPF
  • AR6400-D restores performance, improves fuel economy and smooths idling