AR6500 Diesel Treatment
AR6500 Diesel Treatment
AR6500 Diesel Treatment

AR6500 Diesel Treatment

Sale price$44.95

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• Increase Power and Response

• Improves MPG 6-10%

• Reduces DPF Regen Frequency

• Dissolves Sludge and Stabilizes Fuel

• Improves Lubricity and Extends Component Life

• Maintains and Protects Against Corrosion

• Boosts Cetane Up To 8 Points

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

Power Boost: 2 oz (60ml) per 10 gallons of diesel. For best results use Power Boost dose in first tank of fuel.

Available in two sizes: 10.1 oz bottle treats up to 100 gallons; 40.6 oz bottle treats up to 400 gallons

AR6500 Diesel Treatment

Archoil's AR6500 Diesel Treatment has been formulated to address issues associated with modern diesel fuels. AR6500 incorporates the most powerful and advanced diesel additive chemistry that is currently available. Only 100% active ingredients are used with no fillers, offering greater value per fill up.

AR6500's detergents and lubricants have been engineered to clean, lubricate and protect your fuel system including injectors, pumps, lines and tank in all systems including the latest high pressure common-rail injection fuel systems.

AR6500 also incorporates Archoil's proven combustion modifier technology and a strong cetane boost to increase power and response and reduce soot and carbon build-up in turbos, DPF and EGR components.


Archoil AR6500 removes internal diesel injector deposits and build-up from injector tips to ensure correct spray patterns and restore lost horsepower and fuel economy. AR6500 also prevents further carbon build-up.


AR6500 Diesel Treatment removes carbon from key fuel system components including the turbo, DPF and EGR. This prevents turbo lag, restores boost and reduces DPF regenerations.


The quality of fuel at gas stations is commonly not up to the standards vehicle manufacturers require. AR6500 increases the lubricity of fuel to exceed recommendations, extending component life and preventing premature failure.

Diesel Fuel System Kit

Save more when you buy an Archoil Performance Kit. This Diesel Fuel System Kit includes AR6500 Diesel Treatment (40oz) and AR6400-D Diesel Fuel System Cleaner (12oz).

For the most rapid results, highest protection and best value, AR6500 should be used after application of Archoil AR6400-D Diesel Fuel System Cleaner. AR6400-D delivers a powerful and thorough cleaning service to the fuel system to quickly solve issues associated with carbon build-up and clogged injectors and should be used every 5,000 miles.

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This is the must-have kit for your diesel vehicle, including AR6500 Diesel Treatment (40oz), AR9100 Friction Modifier (16oz) and AR6400-D Diesel Fuel System Cleaner (12oz).

AR9100 eliminates stiction and associated cold start problems in 6.0L & 7.3L Power Strokes 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.


Customer Reviews

Based on 69 reviews
Paul Roby

AR6500 Diesel Treatment

Ben Van Wingerden

AR6500 Diesel Treatment

terry tucker

I like the AR 6500, truck seems to run a little smoother, slightly more Peppy and starts easier. I plan to start using it in some of the tractors at the farm, especially the older models.

John Schaefer

AR6500 Diesel Treatment

Gregory Wing
So far so good!

I currently do not have a powerstroke anymore. I do have 2 John Deere tractors 3032E and a 4044M both have a DPF regen etc. According to the computer the soot build up in the DPF seems to be less than before using Archoil and the tractors seem to start easier when cold.