AR6400-D Diesel Fuel System Cleaner

  • Sale
  • $24.95
  • Regular price $24.95

Customer Reviews

Based on 191 reviews
bryan morris

Incredible product. My 7.3 has 289,000 miles with the original injectors. Running extremely smooth now and restored my original fuel mileage!

willis jones

AR6400-D Diesel Fuel System Cleaner

Josh McClure

It’s makes my truck so happy which makes me very happy. When I really squirt some of that juice in there it makes my ole girl WAKE UP!

R. Scott Webber
Diesel Fuel System Cleaner

Great this is the 3 cycle I have used the product and it has improved my Truck performance. I have noticed my turbo is not as loud as it used to be, as well as the regen cycles on my truck are further apartment and when the clean exhaust filter message comes on it is much shorter in duration than it was prior to using the AR6400-D product. I also us the AR6500 Diesel Fuel additive and that has added to the improvement as well. I am changing the oil this weekend in preparation to making a 5K trip to the west coast and back from Texas and going to be using the AR9100 Friction Modifier for the 2nd time. So far I am totally sold on your diesel products in extending the life and improving the performance as I continue to drive it. I have followed Bill at for over 3 years now and learned a lot of what needs to be done to the new environmental developed 6.7 trucks and I am very confident I am going to get my current truck to 300K plus with the maintenance schedule I have learned from Bill, the Amsoil folks and your products.

Jim Waters
Archoil Products

I have been using the Archoil products in my Superduty and my Duramax, great products!

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 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 Ultimate Diesel Kit

The Archoil Ultimate Diesel Kit includes Archoil's newly-developed AR6500 Diesel Treatment 40oz, 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 Ultimate Diesel 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