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Ultimate Diesel Kit
Ultimate Diesel Kit
Ultimate Diesel Kit
Ultimate Diesel Kit
Ultimate Diesel Kit
Ultimate Diesel Kit
Ultimate Diesel Kit
Ultimate Diesel Kit
Ultimate Diesel Kit
Ultimate Diesel Kit
Ultimate Diesel Kit
Ultimate Diesel Kit

Ultimate Diesel Kit

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Use AR6400-D Diesel Fuel System Cleaner and AR6500 Diesel Treatment to protect your engine, restore your diesel fuel system and boost performance. We recommend using AR6400-D every 5,000 miles and AR6500 in every tank of fuel. Upgrade your oil at every oil change with AR9100.

AR6400-D Diesel Fuel System Cleaner

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

Add directly to the fuel tank before filling up.

Use every 5,000 miles OR use once for a deep clean and then follow up with AR6500 every fill-up for continuous cleaning.

AR6500 Diesel Treatment

Standard: 1 oz (30ml) of AR6500 per 10 gallons of diesel.

Power Boost: 2 oz (60ml) per 10 gallons of diesel.

Add to the fuel tank before every fill-up. Wait until the next fill-up if using AR6400-D.

AR9100 Friction Modifier

For engines, limited slip differentials and motorcylces, use 1.2 oz of AR9100 per quart of conventional or synthetic oil.

For all Power Strokes, use 16 oz of AR9100 every oil change to eliminate & prevent stiction.

For gear oil, hydraulic oil and power steering fluid, use 3.2 oz of AR9100 per quart.

AR6400-D and AR6500 are suitable for use in all diesel vehicles, including newer systems such as High Pressure Common Rail.

AR9100 is suitable for use in all Diesel & Gas engines. For 6.0L and 7.3L Power Stroke engines, AR9100 has the added benefit of eliminating stiction issues.

After Injector Restoration Before Injector Restoration

Restore & Maintain Injector Performance

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

Most diesel fuel lacks the detergents and cetane needed to prevent carbon build-up, 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.

After Turbo Restoration Before Turbo Restoration

Remove Carbon & Reduce Turbo Lag

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

Unlike other treatments, the chemistry in AR6400-D removes build-up from the turbo.

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

After DPF Restoration Before DPF Restoration

Clean the DPF & Reduce Regens

  • Restore MPG & performance
  • Protect against engine damage
  • Prevent costly DPF replacement

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 survive the combustion process, removing soot and heavy carbon deposits from the DPF.

Boost Cetane & Increase MPG

  • Improve combustion efficiency
  • Increase power and response
  • Extend component life

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 and enables optimized engine performance.

Improve Lubricity & Engine Life

  • Protect engine components
  • Reduce maintenance costs
  • Improve engine reliability

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.

Keep Injectors, Turbo & DPF Clean

  • Restores injector spray patterns
  • Protects turbo performance
  • Reduces DPF regeneration frequency

AR6500 contains a maintenance dose of AR6400-D's detergent package for continuous cleaning of the entire fuel system.

As AR6500 is added to the tank at every fill-up, your engine will always have the detergents it needs to break down existing build-ups while preventing the formation of harmful new deposits.

Maximize Power with Advanced Friction Reduction

Excessive engine friction causes power loss, reduced fuel efficiency, heat, noise, and vibration, leading to wear and a less comfortable drive.

AR9100 provides vital lubrication to reduce wear and keep components running smoothly throughout the entire oil cycle and is proven to reduce wear by up to 43% in ASTM testing.

  • Smoother, quieter operation
  • Lower friction boosts power output
  • Reduced engine heat and vibration

Protect Your Engine with a Lubricating Shield

AR9100 creates a solid lubricating barrier that protects engines, gearboxes, and hydraulic systems under extreme pressure. Unlike zinc-based additives, it withstands high stress to enhance durability and performance.

In ASTM testing, AR9100 increased a branded lubricant's load-carrying ability from 3,964 lbs to over 4,500 lbs, significantly improving its anti-wear and friction reduction properties.

  • Provides strong anti-wear protection
  • Resilient under extreme pressure
  • Extends component life

6.0L & 7.3L Power Stroke Stiction Fix

AR9100’s nano‑lubricant cuts through the varnish that forms on HEUI spool valves, dissolving stiction deposits and laying down a slick, wear‑fighting film. By lowering static friction inside 6.0 L and 7.3 L Power Stroke injectors, it brings cold‑start fueling back on time, smooths idle, and delivers the crisp throttle feel your truck had when it left the factory.

  • Dissolves sticky varnish in HEUI injectors
  • Restores smooth starts and steady idle
  • Maintains lubrication under extreme oil pressure

Customer Reviews

Based on 1006 reviews
91%
(920)
4%
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2%
(25)
1%
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1%
(8)
J
Jayson T. (Salt Lake City, UT, US)
Amazing

Archoil works that's all I can say. I instantly noticed a difference in my fuel economy and how my truck ran with the injector cleaner.

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Sid
Excellent additive

I have used different kinds of additive with no noticable difference. Archoil is great stuff. My 2022 Ram is loving this stuff. Regens are happening 24 hours now or 900 to 1300 miles up from around 400 miles prior with same driving conditions. Can't complain about the fuel mileage either. Add it at every fill up.

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mike b. (Denver, CO, US)
Fantastic

I’m a Campos at a national Forest so I was doing a lot of idling and driving real slow around the campground and I was having a lot of regions and perform service and all kinds of codes and I put your cleaner in and I’m using your fuel additive and no problems everything cleaned. I haven’t had any codes. I haven’t had any performance service ever since I use it I believe in I believe it is the best.

J
Joshua E. (Novato, CA, US)
Magic in a bottle

I’ve been running this in my 2022 6.7 Cummins. Started with the black bottle and went to the clear bottle. Been doing 2 oz per 10 gallons. I’m on my second tank of that. Legit getting 2 mpg better on the freeway. Truck runs smooth and is really peppy. Highly recommend. Wish I knew about this stuff sooner than 60k miles on my truck. I’m going to drop down to 1 oz per 10 gallons next tank and see the results. Just buy it you won’t regret it!

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