Archoil AR6900-D Max Advanced Diesel Fuel Synthesis

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AR6900-D MAX is an advanced fuel conditioner specifically designed to address inherent deficiencies in modern diesel and bio-diesel fuels.

Availability: In stock
As low as £4.76 £3.97 Regular Price £5.95


AR6900-D MAX is an advanced fuel conditioner that is specifically designed to address inherent deficiencies in modern diesel fuels. AR6900-D MAX essentially converts regular diesel into Super Diesel but at a more affordable price point. It enhances regular BS EN 590 pump fuel but is also performant in all other diesel fuel types including bio-diesel.

AR6900-D MAX has been engineered to clean, lubricate and protect the fuel system whilst enhancing combustion performance through the use of a cetane improver and Archoil’s combustion catalyst

AR6900-D MAX is suitable for diesel car, van, bus, truck, agricultural and marine including the latest Euro 6 classification or those with the latest high pressure common-rail injection fuel systems. AR6900-D MAX can reduce fuel usage, exhaust emissions and carbonaceous deposits, which help protect the catalytic converter, turbo charger and diesel particulate filter (DPF).


AR6900-D MAX contains the latest technology in detergent performance, extensively tested to provide controlled removal of deposits and keep fuels systems, injectors and engines clean. AR6900-D MAX will remove all types of deposits from the injectors including carbons, varnish and
stubborn lacquers.

AR6900-D MAX will effectively clean older as well as modern Euro 5/6 specification fuel systems.
This results in restored engine performance, MPG and reduction in harmful exhaust emissions.

AR6900-D MAX - Maintenance CleanAR6900-D MAX - Clean Up Cycle


AR6900-D MAX delivers a modern ester-based lubricant helping to protect high pressure injection
systems and fuel pumps from today’s low lubricity, low Sulphur (USLD) fuels. Energy produced by the combustion process can be lost due to internal friction in the engine between the piston rings and cylinder walls.

AR6900-D MAX lubricates these areas resulting in improved engine performance and protection, making it the perfect additive for poorly-additized bio-diesel blended fuels.

AR6900-D MAX - Friction Test Results


AR6900-D MAX contains antioxidants designed to stabilise and extend the life of fuel in storage. An integrated corrosion inhibitor protect fuel tanks and key fuel system components from oxidation. AR6900-D MAX prevents water emulsion and keeps water out of the fuel. Foaming is also reduced.


AR6900-D MAX contains pure 2-EHN cetane improver (up to 5 points) to improve combustion efficiency and engine performance, whilst reducing engine noise. A combustion catalyst technology then facilitates a cleaner burn, improving combustion quality further thus helping to improve performance whilst reducing fuel consumption, exhaust emissions and deposit build-up in the combustion area, turbo charger, DPF and catalytic converter.

Continuous use will reduce combustion, turbo and DPF deposits reducing the need for other dedicated cleaners or DPF regeneration cycling


Only 100% active ingredients are used meaning less wastage and greater value for money.

AR6900-D Max is no-harmed tested and fully BS EN-590 compliant. It is completely soluble in fuel oils and compatible with cold flow improvers


  • Converts regular diesel into Super diesel
  • Restores torque, horsepower & fuel economy
  • Reduces harmful exhaust emissions
  • Prevents sludge & surface build-up
  • Dispersant - removes existing solids in the fuel
  • Lubricant - lubricates the fuel system & upper engine
  • Detergent - safely cleans injectors & removes deposits
  • Stabilizer – extends the usable life of fuel
  • Meets the latest DW-10 performance test
  • Lowers carbon & reduces DPF regeneration cycles
  • Protects against corrosion & water emulsion
  • 100% safe & active ingredients
  • Fully BS EN-590 compliant
  • No Harms tested
  • Optimised for & tested on EN 590 pump fuel


Archoil fuel treatments are successfully used worldwide in a wide array of applications including commercial fleet vehicles, power plants, furnaces, generators, sea vessels, mining equipment, agricultural vehicles, machinery, motor sport, consumer vehicles and more.

Archoil AR6900-D MAX is fully customisable and can be blended to meet the specific requirements and desired treat rates for bulk fuel users and fleet operators.


  • Treatment ratio - 1:1000 (10ml treats 10 litres of fuel).
  • Remove seal, dispense required amount into the fuel tank or fuel storage and then add fuel.


  • Treatment ratio - 1:1000 (10ml treats 10 litres of fuel).
  • Remove seal, dispense required amount into the fuel tank or fuel storage and then add fuel.

Free UK Mainland Shipping for all orders over £15 (inc VAT)

We offer a variety of shipping options to suit your needs and depending on the hazard class of the product and your location. Please note that we don't make any money from our shipping fees.

Depending of the order value and location we cover the shipping cost in full or at least contribute favourably towards the cost.

We strive to ship UK orders the same day providing they are received before 14:00pm and international orders providing they are received before 12:00pm.

To calculate a shipping cost just add the products you require to the cart and follow the first part of the checkout process and it will provide the available options and respective costs.

Guaranteed Damage and Leak Free Delivery or We Will Replace For Free

Great care is needed when packing fluids and very few distributors that specialise in mail order of these types of products are dedicated to the same level of care as us. Our professional and thorough packing is the best in the business and ensures that your order arrives safely. We use strong, high quality, custom made boxes to enable sufficient packing material around each item and thus offer optimum protection against postal damage. And, if any order is damaged, we'll replace it without question. 

DHL Parcels UK Delivery Zones

Zone A Zone B Zone C Zone D
Englands & Wales Scotland Highlands / Northern Ireland Offshore islands
B CO EN IG N RH ST WD  DG  AB40 to AB56  IV41 to IV49
BA CR EX IP NE RM SW WF  EH  IV1 to IV28  IV51 IV55 & IV 56
BB CT FY KT NG S SY WN  FK  IV30 to IV32  KA27 & KA 28
BD CV GL L NN SA TA WR  G  IV36 to IV40  KW15 to KW17 
BH CW GR LA NP SE TF WS  KA (except KA4 & KA28)  IV52 to IV54  PA20
BN DE HA LE NW SK TQ YO  ML  KW1 to KW14  PA60 to PA78
BR DH HD LL OL SL TR*    TD  PA21 to PA38  PH42 to PH44 
BS DL HG LN OX SM TS    AB1 to AB16  PH4 to PH41   ZE 
CA DN HM LS PE SN TW    AB21 to AB25  PH49 to PH50  Channel Islands
CB DT HP LU PL SO UB    AB30  BT - Northern Ireland   IM - Isle of Man
CF DY HR M PO* SP W    AB39    JE - Jersey - DHL Courier Only
CH E HU ME PR SR WA    PA1 to PA19    GY - DHL Courier Only

*PO30 to PO41 - Isle of Wight
*TR21 & TR25 - Isle of Scilly

       PH1 to PH3    

It is very important to us that our products perform exactly as described and that you are entirely satisfied with your purchase. We stand by all of our products to the degree that we will refund you in full if you are not entirely satisfied.  Even if a particular product or service doesn't work for you and we refund your money in full, we will still go out of our away to help diagnose any underlying issue or fault, free of charge.

Money Back Guarantee

Please inform us of any damaged or defective items within 60 days of delivery and we will replace the item FOC or offer a full refund at our discretion. You may be required to return the damaged or defective item(s). This does not affect the manufacturer’s warranty where it applies.

Similarly, if an order is incorrect in anyway, please notify us within 60 days of purchase. We will endeavour to correct your order as soon as we can. You may be required to return incorrect order items.

If, for any other reason, you wish to return an item then please call us beforehand stating the reason within 60 days of receiving your order. Per our no-quibble money back guarantee, we will provide a refund in full for a single item if you are in any way dissatisfied, even if it has been used. Please note that refunds for opened/used products are limited to one item.

Any additional ordered items are still eligible for a refund but they must be returned unopened, in the original packaging and in the condition they were sent.  A refund will be issued minus the original delivery charge.

Please call or email us for authorisation before returning any items. Refunds will only be credited to the same credit or debit card originally used to purchase the goods.  Again, you will not be asked to jump through any hoops.  We will process the refund and then help diagnose any underlying issue or fault, free of charge.

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