The product essentially converts regular supermarket diesel into premium “Super Diesel” fuel through a carefully selected blend of ingredients including pure 2-EHN cetane improver, multiple detergents, ester lubricant, stabilizer, and combustion catalyst technology5. It’s engineered to clean, lubricate, and protect the fuel system while enhancing combustion performance1.

1. Functions and Benefits: 9/10

Archoil AR6900-D MAX provides an impressive array of benefits. It restores torque, horsepower, and fuel economy while reducing harmful exhaust emissions3. The product prevents sludge and surface build-up, removes existing solids in the fuel, lubricates the fuel system and upper engine, and safely cleans injectors while removing deposits35.

It also extends the usable life of fuel, lowers carbon, reduces DPF regeneration cycles, and protects against corrosion and water emulsion5. The cetane improver (up to 5 points) improves combustion efficiency and engine performance while reducing engine noise5. This comprehensive approach to fuel treatment earns it a high score.

2. Notable Technologies: 8/10

The product incorporates several noteworthy technologies. It contains pure 2-EHN cetane improver manufactured in the UK, proprietary ester lubricant, and Archoil’s combustion catalyst technology5. The detergent technology has been extensively tested to provide controlled removal of deposits, effectively cleaning older as well as modern Euro 5/6 specification fuel systems5.

The product also includes antioxidants designed to stabilize and extend fuel life, corrosion inhibitors, and water demulsifiers to prevent water emulsion in the fuel5. The combustion catalyst technology facilitates a cleaner burn, improving combustion quality and helping to reduce fuel consumption and exhaust emissions5.

3. Ease of Use: 7/10

Using Archoil AR6900-D MAX is straightforward with a treatment ratio of 1:1000 (10ml treats 10 liters of fuel)5. However, some users have noted difficulties with the dispensing mechanism. One reviewer mentioned that “it is difficult to get into your tank” and that “the tube is not long or strong enough to dispense into the fuel filler tube”6.

Another user suggested transferring the product to an old Redex bottle for easier dispensing6. Despite these minor inconveniences, most users find the product manageable to use, especially given its concentrated formula that requires only small amounts per tank.

4. Popularity: 8/10

The product appears to be quite popular among diesel vehicle owners. With 154 reviews on eBay alone6, and numerous positive testimonials across various platforms, Archoil AR6900-D MAX has established a strong presence in the fuel additive market. Many users have become repeat customers, with one reviewer stating they were “just about to buy my second one litre bottle”6.

The product has been on the market for over a decade and is “trusted by professionals”5, indicating sustained popularity and market acceptance. Its use across various applications including commercial fleet vehicles, power plants, furnaces, generators, sea vessels, and consumer vehicles further demonstrates its widespread appeal5.

5. Customer Feedback: 9/10

Customer feedback for Archoil AR6900-D MAX is overwhelmingly positive. Users consistently report improvements in engine performance, fuel economy, and reduced emissions. One customer described it as “the real deal” that “outperforms them all for performance, smoothness, throttle response, quietness”6.

Another noted that “the engine is definitely running quieter”6, while others praised its cleaning abilities and impact on fuel economy. One reviewer with extensive diesel driving experience (over a million miles) stated, “It does everything it claims to do and you won’t have any complaints about the product”6.

There are very few negative reviews, though one customer initially had concerns about a potential fault after using the product, but later updated their review to confirm the issue was unrelated to Archoil6.

6. Competitive Comparison: 8/10

Compared to competitors, Archoil AR6900-D MAX appears to offer excellent value and performance. One user specifically compared it to premium fuels from major brands, stating: “Forget all the Shell, BP or Esso ‘Super Fuels’….this is the real deal and out performs them all”6.

Another user compared it to Millers eco max, noting that Archoil was £4.00 cheaper per liter3. The product is positioned as a way to convert regular diesel into premium diesel at a more affordable price point than buying premium fuel directly5. One reviewer calculated that it “works out at £1.20 per 50ml dose so should save you £8-£11 on the cost of a tankful of premium diesel”6.

7. Overall Performance: 9/10

Based on technical specifications and user feedback, Archoil AR6900-D MAX delivers exceptional performance. The product effectively cleans fuel systems, improves combustion, reduces emissions, and enhances engine performance across a wide range of diesel vehicles.

Users consistently report smoother running engines, better throttle response, reduced noise, and improved fuel economy. One reviewer noted that “at MOT time it shows in the emission test”6, indicating measurable improvements in exhaust emissions. The product’s ability to reduce DPF regeneration cycles and protect critical components like turbochargers and catalytic converters further demonstrates its comprehensive performance benefits5.

8. Value for Money: 8/10

At approximately £24 for a 1-liter bottle that treats 1,000 liters of fuel3, Archoil AR6900-D MAX represents good value for money. While it’s not the cheapest diesel additive on the market, its concentrated formula means it “lasts ages”6 and delivers multiple benefits that could potentially save money on repairs and maintenance in the long run.

Users report that it’s more economical than purchasing premium diesel fuels, with one noting that they “won’t be wasting my money on premium fuels anymore”6. The product’s ability to potentially improve fuel economy, reduce emissions, and protect expensive components like DPFs, turbochargers, and fuel injectors further enhances its value proposition.

Verdict

Archoil AR6900-D MAX stands out as a premium diesel fuel additive that delivers on its promises. With its comprehensive approach to fuel treatment, advanced technology, and consistent positive feedback from users, it earns a strong recommendation for diesel vehicle owners looking to optimize performance, improve fuel economy, and protect their engines. While the dispensing mechanism could be improved, this minor inconvenience is far outweighed by the product’s benefits and overall value.