---
product_id: 49019305
title: "Archoil AR6900-D Max Advanced Diesel Fuel Synthesis"
brand: "archoil"
price: "₨1873"
currency: SCR
in_stock: true
reviews_count: 8
category: "Archoil"
url: https://www.desertcart.sc/products/49019305-archoil-ar6900-d-max-advanced-diesel-fuel-synthesis
store_origin: SC
region: Seychelles
---

# 1ml treats 1L diesel - ultra concentrated Multi-action detergent cleans injectors & fuel system Boosts cetane by up to 5 points for cleaner burn Archoil AR6900-D Max Advanced Diesel Fuel Synthesis

**Brand:** archoil
**Price:** ₨1873
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Diesel Game — Power, Clean, and Efficiency in Every Drop!

## Quick Answers

- **What is this?** Archoil AR6900-D Max Advanced Diesel Fuel Synthesis by archoil
- **How much does it cost?** ₨1873 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/49019305-archoil-ar6900-d-max-advanced-diesel-fuel-synthesis)

## Best For

- archoil enthusiasts

## Why This Product

- Trusted archoil brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Economy Meets Endurance:** 1L treats up to 1,000L of fuel, delivering sustained MPG gains and long-term fuel system health.
- • **Ultimate Engine Protection:** Advanced ester lubricant and corrosion inhibitors shield injectors, pumps, and turbochargers from wear and deposits.
- • **Supercharge Your Diesel Fuel:** Transforms everyday diesel into high-performance Super Diesel for peak engine power and efficiency.
- • **Cleaner Starts, Smoother Rides:** Improves cold starts and eliminates diesel knock for a quieter, more responsive engine experience.
- • **Eco-Friendly Performance Boost:** Reduces harmful exhaust emissions and particulate buildup, extending DPF and catalytic converter life.

## Overview

Archoil AR6900-D MAX is a UK-made, 100% active diesel additive concentrate that converts standard diesel into Super Diesel. Featuring a potent blend of cetane improver, detergents, ester lubricants, and combustion catalysts, it cleans fuel injectors, improves cold starts, reduces emissions, and boosts fuel economy. Suitable for all diesel engines including Euro 6 and bio-diesel blends, it treats 1,000L of fuel per litre, ensuring long-lasting engine performance and protection.

## Description

Product Description ARCHOIL AR6900-D MAX 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. 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 technology. 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). 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 Features / Benefits 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 FUEL SYSTEM CLEANER 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. LUBRICANT 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. STABILISER, DISPERSANT, CORROSION INHIBITOR & WATER DEMUSLIFIER 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. CETANE BOOSTER & COMBUSTION CATALYST 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.

Review: Excellent diesel additive, improves performance & starting. - Excellent additive, been using Red x diesel in every tank since I bought my car, was recommended to by dealer. Was an ex demo SUV, had car 10 years, 2.2d turbo intercooler, 178PS , usually get 48 mpg per tank, car can do 0.60 mph in 9.9 seconds though rarely have I attempted that!! lol Keep car serviced annually as per manufacturers service schedule. Kerb weight is 1700kg without driver, a fairly heavy car, performance & economy has always been outstanding, in my opinion, hence decided to keep this car until it starts costing too much for servicing. As Red x seems too expensive now, thought I'd try something else, read reviews on here, and decided upon Archoil AR6900-D and I'm not disappointed. Archoil AR6900-D is exceptional, in my opinion, whilst I wasn't looking for more performance, I've got it, feel like I've suddenly got a sports car. For my car it worked instantly, been overtaking everything in sight. So easy to use, was going on a 200 mile journey, so thought a good test for this. So simple and easy to measure via a cap within a cap, I.E., the outer cap unscrews which is essentially a cover for a nozzle, pour it in then add fuel like I used to do with Red X. As this is my first use of this over a fairly decent journey, I'm ditching Red X, that's for sure, I used more fuel, as was enjoying the overtaking and acceleration so much. The journeys economy dropped to 45 mpg, still acceptable to me, as enjoyed the extra performance, and the engine feels more smooth and quieter. As some other respondents have mentioned, starting a diesel can be an issue, that's been the only downside of this car, it's never liked starting from cold, always starts first time after engine warmed up, had similar issue on all previous diesels, though not as bad as this one. Usually takes at least 2 attempts in summer, 3-4 in winter. Was same when new, was informed about this by the dealer, have to let car idle for 5 mins also before driving also to allow oil to lubricate the turbo, have started from cold several times since adding Archoil, and it starts first time every time. As of writing this in UK in July 2026 it is hotter than usual for us in south England, and it did used to start better when hot outside, but it has never started first time before. The real test will be winter, but any improvement will be helpful. Rather than needing a new costly battery every 2 years, if this helps starting as much has it has already, I'll be saving loads of money, it's also possible this additive may even extend the life of the car.
Review: Improved DPF Regeneration and Good Value for Money - The short version: Archoil AR6900 has noticeably improved the DPF regeneration process on our high-mileage Nissan Qashqai 1.5 dCi. The longer version: After more than 40 years as a car enthusiast, I’ve tried plenty of so-called miracle additives — many of which turned out to be little more than snake oil for tired diesels. So I approached this one with a fair degree of scepticism. We bought a used Nissan Qashqai 1.5 dCi with over 155,000 miles on it. It had been meticulously maintained, but we knew that using it mainly for short journeys (under 10 miles) would likely lead to soot build-up in the DPF. I monitor the regeneration process using an app, and the miles between regens were quite low. Although the car was completing regenerations (no failed attempts), temperatures rarely exceeded 600°C and soot levels would only drop to around 3–4g — never fully clearing. We started adding AR6900 at roughly 50–60ml per 50 litres of good-quality diesel. I’d also take it for a proper drive once a fortnight to ensure the regeneration process was triggered whilst monitoring it. After the fifth treatment, I noticed a clear change: significantly more miles between regens, regen temperatures increasing to around 650–670°C, and — for the first time — soot levels dropping to 0g. That had simply never happened before. I don’t monitor MPG closely, so I can’t comment on fuel economy, but in terms of DPF performance there has been a definite improvement. From a cost perspective, it also makes sense. Even allowing for the additive, it still works out cheaper than regularly filling up with premium diesel that claims to contain similar detergents and cleaning agents. For me, it’s a more cost-effective way of achieving comparable — if not better — results. I’ve since started using it in a 23-year-old diesel as well and have already noticed smoother running after just a couple of partial fill-ups.

## Features

- Harmful if inhaled.
- Harmful if swallowed.
- Harmful in contact with skin.
- Repeated exposure may cause skin dryness or cracking.
- Toxic to aquatic life with long lasting effects.
- EXCEPTIONAL HIGH-PERFORMING SUPER DIESEL FUEL. AR6900-D MAX converts low-quality supermarket diesel into high-performing Super Diesel Fuel using a carefully selected blend of pure 2-EHN cetane improver, multiple detergents, ester lubricant, stabiliser and combustion catalyst.
- HIGHLY CONCENTRATED FORMULATION with no fillers. 100% Active Ingredients and manufactured in the UK. 1ml Treats 1L of Diesel Fuel. 1L bottle treats up to 1,000L of fuel.
- TRANSFORMS ALL DIESEL ENGINES GUARANTEED. Improved Cold Start, Eliminates Diesel Knock, Fuel System Cleaner, Fuel Injector Cleaner, Carbon Cleanr, DPF Cleaner, EGR Valve Cleaner, CAT Cleaner, Turbo Cleaner and Exhaust cleaner.
- MAXIMUM ENGINE PERFORMANCE AND FUEL ECONOMY. This diesel additive maintains & improves engine pickup, performance and fuel economy. This diesel additive also lowers harmful exhaust emissions and exhaust particulates.
- RESOLVES ENGINE PROBLEMS. Multiple detergents and post-combustion fuel-borne catalysts deliver a proprietary blend of Professional Grade Cleaning. Now you can reduce the chance of engine problems while enjoying a smoother and more responsive engine.
- CLASS LEADING CETANE IMPROVER AND ESTER LUBRICANT using the highest purity 2-EHN and proprietary ester lubricant delivering below 290 on the HFRR scar wear test.
- CUSTOMER SATISFACTION IS OUR PRIORITY. Feel free to contact us if you have any query regarding this diesel cleaner. All Archoil fuel cleaners include professional support and Performance and Emissions Pass Guarantee. Over a decade of success and trusted by professionals.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01IDDF4JM |
| Best Sellers Rank | 217 in Automotive ( See Top 100 in Automotive ) 11 in Fuel Systems |
| Brand | Archoil |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,704) |
| Date First Available | 12 July 2016 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Weight | 1.15 kg |
| Manufacturer | Archoil |
| Manufacturer part number | AR6900 D |
| Manufacturer reference | AR6900 D |
| Model | AR6900-D Max |
| Product Dimensions | 13.5 x 7 x 25 cm; 1.15 kg |

## Images

![Archoil AR6900-D Max Advanced Diesel Fuel Synthesis - Image 1](https://m.media-amazon.com/images/I/81eEPhyJ46L.jpg)
![Archoil AR6900-D Max Advanced Diesel Fuel Synthesis - Image 2](https://m.media-amazon.com/images/I/71Y8Qtkd3yL.jpg)
![Archoil AR6900-D Max Advanced Diesel Fuel Synthesis - Image 3](https://m.media-amazon.com/images/I/71kEQocwJvL.jpg)
![Archoil AR6900-D Max Advanced Diesel Fuel Synthesis - Image 4](https://m.media-amazon.com/images/I/818yzaLpRmL.jpg)
![Archoil AR6900-D Max Advanced Diesel Fuel Synthesis - Image 5](https://m.media-amazon.com/images/I/81gpsfOxqwL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is this a once a year 10000 mile cleaner or to be added regularly to supermarket fuel ?**
A: Add regularly to a normal diesel with a specified amount only for example 50ml for a 50 litre fuel ,it increases cetane level to help combustion ,best combo is AR9100 oil friction modifier with Ar6900-D,i had intermittent dpf issues which has gone .Good for short journeys too.It will take effect after some thousand miles.
AR6400 you can use every 5 to 10k miles .

**Q: Does this contain a anti waxing agent**
A: No, anti-wax products are singular treatments (AR6350) as they are not stable with conventional additives.

**Q: Does adding this provide the benefits of using the Super Diesel fuels. In other words if using this is it okay to use regular diesel in a vehicle?**
A: Yes.  AR6900-D MAX transforms standard diesel (even supermarket fuel) into a super diesel.  Super diesel is standard diesel with more 2-EHN cetane improver, detergent, lubricant, stabilizer etc.  AR6900-D is min 75% 2-EHN cetane improver and the remainder comprising of a powerful and modern diesel detergent pack, VERY high quality ester fuel lubricant, stabilizers, corrosions inhibitors, anti foaming agent and combustion catalyst.  For this reason AR6400-D MAX is designed to be used with STANDARD diesel and not super diesel.

**Q: Has anyone noticed an immediate 'drop' in economy when first using this stuff, if so does it them improve afterwards?**
A: This may be due to cleaning out some nasty build ups. Are you also changing your oil, oil filter, air filter and fuel filer on time? A lack of air can cause massive buildups over time which you may not notice until you begin the cleaning process.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent diesel additive, improves performance & starting.
*by S***R on 7 July 2026*

Excellent additive, been using Red x diesel in every tank since I bought my car, was recommended to by dealer. Was an ex demo SUV, had car 10 years, 2.2d turbo intercooler, 178PS , usually get 48 mpg per tank, car can do 0.60 mph in 9.9 seconds though rarely have I attempted that!! lol Keep car serviced annually as per manufacturers service schedule. Kerb weight is 1700kg without driver, a fairly heavy car, performance & economy has always been outstanding, in my opinion, hence decided to keep this car until it starts costing too much for servicing. As Red x seems too expensive now, thought I'd try something else, read reviews on here, and decided upon Archoil AR6900-D and I'm not disappointed. Archoil AR6900-D is exceptional, in my opinion, whilst I wasn't looking for more performance, I've got it, feel like I've suddenly got a sports car. For my car it worked instantly, been overtaking everything in sight. So easy to use, was going on a 200 mile journey, so thought a good test for this. So simple and easy to measure via a cap within a cap, I.E., the outer cap unscrews which is essentially a cover for a nozzle, pour it in then add fuel like I used to do with Red X. As this is my first use of this over a fairly decent journey, I'm ditching Red X, that's for sure, I used more fuel, as was enjoying the overtaking and acceleration so much. The journeys economy dropped to 45 mpg, still acceptable to me, as enjoyed the extra performance, and the engine feels more smooth and quieter. As some other respondents have mentioned, starting a diesel can be an issue, that's been the only downside of this car, it's never liked starting from cold, always starts first time after engine warmed up, had similar issue on all previous diesels, though not as bad as this one. Usually takes at least 2 attempts in summer, 3-4 in winter. Was same when new, was informed about this by the dealer, have to let car idle for 5 mins also before driving also to allow oil to lubricate the turbo, have started from cold several times since adding Archoil, and it starts first time every time. As of writing this in UK in July 2026 it is hotter than usual for us in south England, and it did used to start better when hot outside, but it has never started first time before. The real test will be winter, but any improvement will be helpful. Rather than needing a new costly battery every 2 years, if this helps starting as much has it has already, I'll be saving loads of money, it's also possible this additive may even extend the life of the car.

### ⭐⭐⭐⭐⭐ Improved DPF Regeneration and Good Value for Money
*by M***R on 17 February 2026*

The short version: Archoil AR6900 has noticeably improved the DPF regeneration process on our high-mileage Nissan Qashqai 1.5 dCi. The longer version: After more than 40 years as a car enthusiast, I’ve tried plenty of so-called miracle additives — many of which turned out to be little more than snake oil for tired diesels. So I approached this one with a fair degree of scepticism. We bought a used Nissan Qashqai 1.5 dCi with over 155,000 miles on it. It had been meticulously maintained, but we knew that using it mainly for short journeys (under 10 miles) would likely lead to soot build-up in the DPF. I monitor the regeneration process using an app, and the miles between regens were quite low. Although the car was completing regenerations (no failed attempts), temperatures rarely exceeded 600°C and soot levels would only drop to around 3–4g — never fully clearing. We started adding AR6900 at roughly 50–60ml per 50 litres of good-quality diesel. I’d also take it for a proper drive once a fortnight to ensure the regeneration process was triggered whilst monitoring it. After the fifth treatment, I noticed a clear change: significantly more miles between regens, regen temperatures increasing to around 650–670°C, and — for the first time — soot levels dropping to 0g. That had simply never happened before. I don’t monitor MPG closely, so I can’t comment on fuel economy, but in terms of DPF performance there has been a definite improvement. From a cost perspective, it also makes sense. Even allowing for the additive, it still works out cheaper than regularly filling up with premium diesel that claims to contain similar detergents and cleaning agents. For me, it’s a more cost-effective way of achieving comparable — if not better — results. I’ve since started using it in a 23-year-old diesel as well and have already noticed smoother running after just a couple of partial fill-ups.

### ⭐⭐⭐⭐ I think it works
*by D***V on 4 July 2025*

Got my Skoda 2.0 TDI with 12k miles about 8 years ago. I've added a (generous) dose of this virtually every time I fill the tank. With 112k miles on the clock my car is still running well. Engine sounds smooth and quiet for a diesel. I don't know how much, if any mpg it's adding, or if it's actually doing any good. All I can say is that my car starts without any problem on original glow plugs, I get around 50mpg average (70+ on a long, steady run), and no EGR/DPF problems so far. Also, it feels like I'm still getting all of the claimed 150 bhp. It appears I'm on my 5th bottle of this additive, so I've spent a bit over £100. It seems to be money well spent.

## Frequently Bought Together

- Archoil AR6900-D Max Advanced Diesel Additive Concentrate, 1L Treats 1,000L of Fuel, Diesel Fuel Injector Cleaner, DPF Filter EGR Valve Turbo Cleaner, Super Diesel Converter. (1Litre)
- Archoil AR6400-D MAX Pro DPF Cleaner Diesel Fuel System, Diesel Injector Cleaner, Turbo, CAT Cleaner Concentrate - High Strength Carbon Removal & Exhaust Emissions Reduction for MOT Pass (400ml)
- Archoil AR2810 Mass Air Flow Sensor Cleaner MAF, MAP, Air Intake Plenum and EGR Cleaner, 500ml, Residue Free Multi Action Formulation for Fast Results & Zero Waste. Professional Nozzle Applicator

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-08-13*