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Archoil AR6400 Pro Petrol Cleaner PEA Concentrate (430ml)

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Our Price: £19.75 £16.46 ex vat
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Product Description

Archoil AR6400 Professional Polyetheramine Concentrate NEW AND IMPROVED FOR 2014

is a powerful next-generation fuel additive blended from the latest high-strength polyetheramines that quickly and safely remove gum, varnish and carbon deposits from the fuel system and engine. Advanced combustion modification chemistry then maximizes combustion performance to help remove post combustion hydrocarbon build-up whilst rapidly reducing harmful exhaust emissions.

AR6400 quickly restores lost engine performance and fuel economy in addition to unique properties that help protect surfaces from further deposit build-up. Molecule by molecule deposits are safely removed from intake valves and piston tops thus improving combustion efficiency and reducing the propensity for pre-ignition. AR6400 is suitable for all 4-cycle gasoline engines, including ethanol blended fuels and biofuels. AR6400 is not suitable for 2-cycle engines.


  • Cleans harmful deposits and prevents future accumulation
  • Restores fuel efficiency
  • Restores fuel economy
  • Restores power and performance
  • Smoothes rough idling
  • Lowers harmful exhaust emissions
  • Reduces octane requirement.

The first family of dispersant/detergents were amines with a polyisobutylene (PIB) tail. The PIB tail gave good solubility and the amine group provided surface activity that lifted deposits from the metal surface. However the PIB tail, as a polymer, gave the undesirable effect of stickiness so the PIB amine had to be combined with a fluidizer to ensure that it flowed through the combustion region of the engine and did not build up any residues. The fluidizer was typically a polyolefin epoxide.

The next generation of chemistries combined the fluidizer with the polymeric amine. These are called polyetheramines or PEA. Polyetheramines do not require the addition of a fluidizer and the oxygen content provides enhanced surface activity. PIB amines are still widely used in gasoline and perform well.

However, PEA’s offer improved combustion chamber cleaning efficiency but is considerably more expensive. There is an abundance of supply of PIB amines unlike with PEA; hence the treatment cost is significantly higher. Therefore, PEA’s are not widely found in low cost cleaners or are found in reduced quantities. AR6400 contains the highest safe amount of PEA and accompanying chemistry to safely move deposits.


  1. Add the correct amount of AR6400 to the fuel tank first and then fill up with fuel immediately afterwards.
  2. Treatment ratio is 1:100 > 1:200. A single 430ml bottle will treat between 43 and 86 litres of fuel. A 5 litre container will treat up to 1000 litres of fuel.
  3. Use every 5000 miles or use once and follow up regularly with Archoil AR6200-EU or AR6300.


"Hello, I have recently purchased and used your AR6400 product.

In the past, my car achieved an average fuel consumption of 34.6 mpg, which for a high performance vehicle, I thought to be good.  Having used your product, together with fitting an ITG panel air filter, I am now achieving 40.6 mpg.  It looks like you will be saving me a great deal of money. Thank you so much - outstanding." Tony

"Hi, recently purchased your Archoil Professional fuel system cleaner for my Mini Cooper S. Very impressed by the extra boost it appeared to immediately give to the supercharger.”  Nick

"The following is an article I posted on the Jaguar forums, if it is of any use to you then please feel free to use it.  Hi guys. I am new to these forums but have found them a very interesting read. I have had the same problem as most on here with the car showing more warning lights than a jumbo jet out of fuel. Because of the constant selection of Limp home mode, One garage said they would have to take the gearbox apart at the cost of a couple of thousand pounds.

A couple of weeks ago the car wouldn't start at all. After 5 days of scratching my head and after reading these forums I found out about the EGR Valve and someone said tap it with a rubber mallet, which I did. Hey Presto the bloody thing started. It seemed to me that the slightest bit of dirt

would make the valve stick and because the sensors really couldn't tell what was wrong all sorts of lights lit up and limp-home mode engaged.

Anyway I have solved all my problems with an amazing product called Archoil.  The product was AR6400-D. It is supposed to clean your system including the EGR. I have only had the stuff in there for about 100 miles now and the difference is amazing. I am hoping that before long I can take the rubber mallet out of my boot. Its embarrassing sitting in the Supermarket car park belting hell out of a Jaguar engine to make it go Like most people I am sceptical about products like this but i was desperate and willing to try anything.

Footnote: I am in no way connected to the makers of Archoil. Just an ordinary joe trying to get his car to work efficiently.”  Mitch H

"Hi, thanks for the prompt reply. I'll go for the longer Journey. Perhaps a touch of an "Italian" tune up but keeping within the 3.5k rev limit.  I have to say that Archoil products work really well for me in my 2.0d BMW X3. Also the forums / blog are useful in understanding what goes on within and why it sometimes plays up. Once again, thanks for your help."  Steve

"Hello, I've driven to south to France to relatives. They have a string of high mileage diesel cars and vans.  I had bought a bottle of AR6400-D to use on the trip. However at arriving at hosts home, the discussion of Diesel engines came up. The conversation ended with me gifting them my bottle of AR6400-D.

Their old Renault Megane Diesel with 340,000 km on the clock was completely transformed by your magic potion. The car they had thought was on its last legs.  Under 100 miles of driving with archoil in the tank became quieter, faster and more responsive.

My host was so impressed with Archoil, he called his local garage owner at 11pm at night demanding to know why he hadn't stocked any Archoil.

Good luck, I think you have a new bunch of customers here in south of France. All with diesel cars and fleet vans to operate.”  Asim B

Hi Andy, you will be glad to hear on my friend's Ford Mondeo 2.0L diesel with a DPF (DW10BTED4 engine) it gave a solid 10% fuel economy improvement and restored the car's original responsive and engine note/noise.  Thanks! Regards, Istiaqu

What a great purchase, I have tried a few products and I can honestly say what a product. After just a tank full of fuel what a difference ! The car sounds quiet, crisper on the throttle response and is giving an extra few miles. I fully recommend this to anyone, as they say "Probably the best treatment on the market". Used on BMW 525 Sport. Please add to your testimonial if you wish kind regards Milan.

Comments: Just used Archoil 6400 on my Audi A6 2.5 tdi, quattro (120,000mls) with great improvement in every area- well pleased with that! J. Gowans

Good morning, I have now been using your products for a few months now and I would like to say... they do deliver!

I'm just writing a quick email to let you know the results on using your diesel treatment, received on the above order number.  We recently bought a low mileage 2010 Kia Sportag 4x4 with 6k miles on.  The Kia dealer said that an elderly gent had owned it since they supplied it and it had been used for pootling around in.  When we got it home and started using it, it felt like it needed a really good clear out.  I gave it a motorway run but it was still hesitant, especially when setting off in 1st and then moving up to 2nd and so on. Anyway, I used it as instructed.  Put it in the tank and then filled up.

I felt a difference in just a few miles but couldn't quite believe it and thought I might just be wanting it to work too much so I waited until I had driven 250 miles and then I took my husband out in it.  He couldn't believe the difference! It is now smoother with no hesitation at all and now feels like the new car it should feel like. We are so pleased and so I thought that I would let you know. Thank you, S Jones

All I can say is WOW!!! After 1/2 tank of gas I have a noticeable increase in power and reduced engine clatter. Seriously, my engine runs and sounds sweet...almost like the Nissan engine was yanked and someone dropped a BMW inline 6 in there. Well, maybe that's a bit exaggerated, but it's quite a bit smoother and better sounding. I also expect an increase in gas mileage, but I won't know for at least a week after I fill up and drive normally on the next tank.

Andy, as you know I have been in the trade for a long time, even longer than you!  I am always amazed by your level of knowledge and expertise. Would you like a job?  I know your job is a tough one as there is so much crap out there and its refreshing to have a supplier that will only provide the very best solutions for me and my customers but also with the support to match.  We continue to use you for this reason.  Much appreciated, B Roberts (Master Mechanic)

When I first acquired my car it had done 122k miles and i did not expect major improvements, but after using every 2nd fill I have been able to change from 44 mpg to 48mpg and the car is now at 131K.  Thanks! Best regards, K Smith

Just to say thank you, and although too early to judge any improvements on car or boat, I am so impressed with your company care, I have sent details to my brother in Guernsey. Regards, M Wiggins

Comments: Can't believe it, have only done 15 miles of mixed driving (around town, and a short blast on the motorway), and the engine has stopped "juddering" when idling. Will leave further feedback next week, if that's alright. Fingers crossed.  R Dunn