Is this a once a year 10000 mile cleaner or to be added regularly to supermarket fuel ?

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 .

Does this contain a anti waxing agent

No, anti-wax products are singular treatments (AR6350) as they are not stable with conventional additives.

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?

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.

Has anyone noticed an immediate 'drop' in economy when first using this stuff, if so does it them improve afterwards?

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.

Archoil Ar6900 D Max Advanced Diesel Additive Concentrate 1l Treats

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Description

🚀 Elevate Your Diesel Game — Because Your Engine Deserves the Best

COLD START CHAMPION - Eliminates diesel knock and ensures smooth, reliable starts even in the harshest conditions.
ULTIMATE FUEL ECONOMY - Boosts MPG by up to 60%, saving you money on every tank while reducing harmful emissions.
PRO GRADE CONCENTRATION - 100% active ingredients with no fillers—just pure power in every milliliter, trusted by professionals for over a decade.
SUPERCHARGE YOUR DIESEL - Transforms low-grade diesel into high-performance super fuel for unmatched engine power and efficiency.
COMPREHENSIVE ENGINE DETOX - Cleans injectors, DPF, EGR valves, turbo, and exhaust systems to keep your diesel running flawlessly.

Archoil AR6900-D Max is a UK-made, highly concentrated diesel additive that treats up to 1,000 liters of fuel per liter of product. It improves cold starts, boosts fuel economy, and cleans critical engine components including injectors, DPF, EGR valves, turbochargers, and exhaust systems. Featuring a proprietary blend of cetane improvers, detergents, lubricants, and catalysts, it guarantees enhanced engine performance, reduced emissions, and prolonged engine life—making it the go-to solution for diesel enthusiasts and professionals alike.

Specifications

ASIN	B01IDDF4JM
Best Sellers Rank	306 in Automotive ( See Top 100 in Automotive ) 12 in Fuel Systems
Brand	Archoil
Customer Reviews	4.6 4.6 out of 5 stars (1,659)
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

Reviews

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17.02.2026

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29.11.2024

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28.02.2026

L**I

22.04.2026

M**W

9.04.2026

M**Z

25.03.2026

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