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AR6400 Fuel System Cleaners

Essential Maintenance for Your Fuel System

AR6400 Fuel System Cleaners
AR6400 Fuel System Cleaners

Archoil's high concentrate fuel system cleaners (AR6400-D for diesel and AR6400-G for gasoline) are designed to restore and maintain maximum performance and fuel economy.

Even a brand new vehicle's performance will decline if not regularly treated with a fuel system and engine cleaner.

AR6400-D

For Diesel Engines

AR6400-D is formulated to clean diesel engines and fuel systems. Use AR6400-D every 5,000 miles or every oil change to maintain a clean diesel fuel system and engine.

Benefits

  • Optimized for diesel engines
  • Cleans fuel system and injectors
  • Reduces combustion chamber deposits
  • Removes soot deposits from DPF/EGR/Turbo
  • Restores optimum power and fuel efficiency

How it Works

Clean fuel system and engine

AR6400-D uses PEA detergents to remove gum, varnish and carbon deposits from the fuel system, injectors and engine helping restore power and fuel efficiency.

Break down soot

AR6400-D also helps remove soot build-up from the post combustion systems. Use AR6400-D to prevent or remedy blocked DPF's, dirty EGR systems and stuck wastegates and variable turbochargers, and associated drivability issues.

Increase power and fuel efficiency

Deposits in the fuel system and engine as well as in post combustion systems cause drivability issues and reduce fuel economy and power. Use AR6400-D to refresh your diesel engine's performance.

AR6400-D Usage

Use AR6400-D every 5000 miles or as required. We recommend using AR6200 Fuel Treatment at every fill-up between AR6400-D treatments.

One bottle of AR6400-D treats between 12 and 25 gallons of fuel. Use one bottle per 12 gallons of fuel for deep cleaning.

Harry 6.0, Senior Moderator, TheDieselGarage.com

"In my 6.0L PowerStroke it was truly incredible. My first refill at the same station and the same pump, I hand calculated 19.5mpg, that's around town with some freeway driving, it's usually an average of 16mpg. Also the power and performance level increase with this product in your fuel is a whole new experience. When towing heavy trailer loads of hay last weekend my low end power had increased substantially. The exhaust tone of the truck was also noticeably cleaner sounding and all gauge readings were in the sweet zone."

Harry 6.0
Senior Moderator, TheDieselGarage.com

AR6400-G

For Gasoline Engines

AR6400-G is formulated to clean gasoline engines and fuel systems. Use AR6400-G every 5,000 miles to maintain a clean fuel system and engine.

Benefits

  • Optimized for gasoline engines
  • Cleans fuel system and injectors
  • Reduces combustion chamber deposits
  • Cleans intake valves
  • Increases power and fuel efficiency

How it Works

Clean fuel system and engine

AR6400-G uses PEA detergents to quickly and safely remove gum, varnish and carbon from the fuel system and engine. AR6400-G will also clean carbon deposits from intake valves on manifold injected vehicles, and help to remove deposits from turbochargers and EGR valves.

Ensure optimum power and fuel efficiency

Many of the world's automobile manufacturers including BMW, GM, Fiat Chrysler Automobiles, Honda, Toyota, Volkswagen, Mercedes-Benz and Audi, recognize that the levels of detergents required by the EPA to be present in gasoline is not high enough to maintain optimal engine performance. Removing deposits which have built up over time will restore power and fuel economy which has been degraded by deposit formation. Regular use of AR6400-G will help maintain optimum fuel economy and power.

AR6400-G Usage

Use AR6400-G every 5,000 miles or as required. We recommend using AR6200 Fuel Treatment at every fill-up between AR6400-G treatments.

One bottle of AR6400-G treats between 12 and 25 gallons of fuel. Use one bottle per 12 gallons of fuel for deep cleaning.

AR6400 Frequently Asked Questions

What's the difference between AR6200 and AR6400 (D or G)?

A small amount of AR6200 Fuel Modification Complex is added to every tank of fuel to boost performance, ensure fuel quality and protect the fuel system from wear, deposit formation, corrosion and microbial growth. AR6400 (D or G) is designed to be added in large doses to remove existing deposits from your fuel system and engine. For example, a 16.9 oz bottle of AR6200 treats up to 500 gallons of fuel and a 16 oz bottle of AR6400 (D or G) treats up to 25 gallons of fuel.

I am currently using AR6200 in every tank of fuel and my vehicle is running fine. Will there be any benefit to using AR6400 (D or G)?

Removing deposits which have built up over time from diesel or gasoline engines will restore power and fuel economy which has been degraded by deposit formation. Using a fuel system and engine cleaner regularly will maintain optimum fuel economy and power. AR6200 Fuel Modification Complex is a maintenance product and will help keep your fuel system clean in between treatments, but in order to remove heavy deposits the higher concentration of detergent offered by AR6400 (D or G) Fuel System and Engine Cleaner is necessary.

Can I use AR6200 at the same time as AR6400 (D or G)?

You can use AR6200 at the same time as AR6400 (D or G)

Customer Reviews

Based on 28 reviews
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j
j.
injectors and turbo

Bought to clean injectors on 2002 crown vic with 80,000 miles. Also bought 6400-d for my 1996 7.3 with 150,000 miles to clean turbo. Have not had chance to do truck yet

J
J.M.
Good product

decided to try it out after watching Bill Hewitt from Powerstrokehelp.com’s youtube channel on how he praised how well the product is. I noticed right away that my engine ran smoother and more quiet. Highly recommend this product

C
C.G.
Pretty awesome stuff.

Ran this in my truck according to the directions and gained about 1mpg. Love ARCHOIL products—lifetime subscriber. Truck has 65k miles. 2017 F350. Thanks!

G
G.S.
Did as advertised.

This must be a relatively strong concentrate. Unless I'm losing it, I believe I could smell the cleaner in the exhaust on a cold morning. Worked as advertised. No complaints

C
C.W.
So Far So Good

Even foreign autos need help to make it to 300,000 miles. I used the AR6400-G and AR9100 in a 2010 4Runner with 109,000 miles on it. By the end of the first tank the MPG indicator was up 1.3 mpg. Not amazing butt it showed me even with regular oil/air filter changes gunk still happens. Now after the second tank of gas and mpg is still 18 -18.1 city. I will be adding AR6200 before the next fill up.