AR6400-D Diesel Fuel System Cleaner

AR6400-D Diesel Fuel System Cleaner

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Restore diesel engine power and performance with AR6400-D Diesel Fuel System Cleaner. Deep clean your injectors, turbo, and DPF for maximum efficiency. Buy now for a complete fuel system restoration.

One 12 oz bottle of AR6400-D treats 40 gallons of diesel fuel.

Add AR6400-D to the fuel tank at the required dosage and then add fuel. Treat 40 gallons for a complete clean. Use every 5,000 miles or as required.

AR6400-D is suitable for use in all diesel vehicles.

A rapid deep clean for the entire fuel system

AR6400-D's highly-concentrated detergent package contains proprietary chemistry that quickly removes carbon deposits from the injectors and, unlike other diesel additives, the DPF and turbo.

By targeting these critical components, AR6400-D will:

  • Restore engine performance
  • Boost fuel efficiency
  • Reduce wear and tear
  • Prevent costly repairs

Bring your diesel injectors back to life

Most diesel fuel lacks the detergents and cetane needed to prevent carbon buildup, leading to poor combustion, reduced power, and potential injector failure.

AR6400-D contains a strong dose of highly concentrated detergents which quickly remove internal diesel injector deposits (IDIDs) and heavy carbon build-up from injector tips, in order to:

  • Improve combustion
  • Correct spray patterns
  • Reduce carbon deposits
  • Enhance fuel economy

The only treatment to clean the DPF

Over time, carbon builds up in the Diesel Particulate Filter (DPF) which results in more frequent regenerations, poor engine performance and potential failure. DPF replacement costs typically range from $2,000 up to $10,000.

AR6400-D is the only diesel fuel system cleaner specifically formulated to remove soot and heavy carbon deposits from the DPF. Use AR6400-D to:

  • Reduce regeneration frequency
  • Restore MPG & performance
  • Prevent engine damage

Restore turbo performance

Carbon build-up in diesel turbos significantly impairs performance by restricting airflow and increasing exhaust backpressure and leads to turbo lag, reduced fuel efficiency and potential engine failure. In VGTs, carbon deposits cause the vanes to stick, resulting in inconsistent power delivery.

Unlike other treatments, AR6400-D removes build-up from the turbo to:

  • Reduce turbo lag
  • Restore boost
  • Reduce excess heat and wear
  • Prevent premature failure

Customer Reviews

Based on 414 reviews
93%
(385)
4%
(15)
2%
(8)
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1%
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D
David R. (Riverside, CA, US)
Just awesome

Awesome product I’ve been using arch oil products ever since I’ve gotten my 6.7 L power stroke and I heard that the CP4 was a ticking time bomb

R
Ronald B. (Wilmington, DE, US)
Noticed smoother engine performance

Seems to work as advertised

c
cummins 6.n.h. (Toronto, ON, CA)
it did something

'24 ram 32gallon tank. regen every 100 or so minutes. put the whole bottle in with ar6500 2oz/10gallons. next regen was at 790 minutes. now that that tank is gone and just running on 2oz/10gallons of ar6500 my dpf gauge is climbing up again. i will see how this tank runs out. daily driving 47 mile round trip commute in kc

D
Dennis F. (Davie, FL, US)
Great Stuff!

Great Stuff! Love it!

AR6400-D FAQs

AR6400-D is suitable for all diesel vehicles, including newer systems such as High Pressure Common Rail.

AR6400-D is a highly concentrated detergent package which should be used for a rapid, deep clean of the fuel system every 5,000 miles.

We recommend using AR6500 Diesel Treatment at every fill-up between uses of AR6400-D.

AR6500 Diesel Treatment boosts cetane, improves the lubricity of fuel and contains a maintenance dose of detergents to maximize fuel system performance at every fill-up.