1. Functions and Benefits: 8/10
Millers Diesel Power Ecomax provides multiple benefits for diesel engines. It increases power and fuel economy while reducing emissions and engine noise. The product cleans injectors quickly, adds up to 4-5 cetane numbers to improve combustion, and enhances fuel lubricity to protect fuel system components134.
It’s particularly effective at improving throttle response at lower revs, offering better performance and economy simultaneously. The product also includes corrosion inhibitors and helps reduce particulates, minimizing the risk of DPF blockage and costly repairs14. While comprehensive, it offers slightly fewer claimed benefits than some competing products.
2. Notable Technologies: 7/10
The product incorporates several notable technologies, including an enhanced detergency package for quicker cleanup and prolonged injector cleanliness. It contains cetane improvers that increase the cetane rating by up to 4-5 points, providing tangible improvements to vehicle performance34.
The formula includes specially added lubricity enhancers to protect fuel system components against wear and prevent fuel system corrosion. While effective, the product doesn’t highlight any proprietary or breakthrough technologies that would set it significantly apart from competitors.
3. Ease of Use: 9/10
Using Millers Diesel Power Ecomax is straightforward with a treatment ratio of 1:1000 (1ml per liter of fuel). The 500ml multi-shot bottle treats 10 full 50-liter tanks, making it convenient for regular use14. The one-shot boost version (250ml) is designed to treat a single 60-liter tank for maximum effect3.
The multi-shot bottle design allows for precise dosing, and users can opt for double strength application for additional performance as suggested in the product instructions45. The simplicity of adding it before refueling makes it accessible for all users regardless of mechanical knowledge.
4. Popularity: 8/10
The product appears to be quite popular among diesel vehicle owners. It has received numerous positive reviews across various platforms, including automotive forums and retail sites. Many users have become repeat customers, with some reporting they’ve used the product for 6-7 years across multiple vehicles2.
Its popularity extends to professional users as well, with one reviewer mentioning that “most of my local taxi drivers use it”2. The product’s long-standing presence in the market and continued positive reception indicate sustained popularity.
5. Customer Feedback: 9/10
Customer feedback for Millers Diesel Power Ecomax is overwhelmingly positive. Users consistently report improvements in engine performance, fuel economy, and reduced emissions. One customer described the effect as “like the car’s had an engine transplant,” noting significantly improved smoothness, responsiveness, and reduced noise levels5.
Another long-term user stated they’ve been using it for about 6 years, and “every time it goes for the MOT the tester asks the same question: why are the emissions so low??”2. Multiple reviewers have mentioned noticeable improvements in engine smoothness, power, and fuel consumption.
The few negative comments relate primarily to packaging issues rather than product performance, with one user mentioning a leaky bottle upon delivery2.
6. Competitive Comparison: 7/10
Compared to competitors, Millers Diesel Power Ecomax appears to offer good value and performance. Users often compare it favorably to premium diesel fuels, with one noting they now use regular supermarket diesel with this additive instead of more expensive premium fuels5.
At approximately £12-13 for a 500ml bottle that treats 500 liters of fuel, it represents good value compared to the premium paid for higher-grade diesel fuels. Some users have calculated that it costs around 2p per liter treated, making it economical compared to the premium paid for higher-grade fuels from major brands2.
While effective, it doesn’t appear to have any revolutionary features that place it significantly ahead of all competitors in the market.
7. Overall Performance: 8/10
Based on technical specifications and user feedback, Millers Diesel Power Ecomax delivers excellent 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 it “drastically reduces emissions of hydrocarbons (HC) and carbon dioxide”4. The product’s ability to increase cetane rating by up to 4-5 points provides tangible improvements to vehicle performance34.
8. Value for Money: 8/10
At approximately £12-13 for a 500ml bottle that treats 10 full tanks (500 liters) of fuel, Millers Diesel Power Ecomax represents good value for money. The concentrated formula means each application costs around 2p per liter treated, making it economical for regular use2.
Users report that it’s more economical than purchasing premium diesel fuels, with many switching from premium fuels to regular diesel with this additive. The product’s ability to potentially improve fuel economy, reduce emissions, and protect expensive components further enhances its value proposition.
Verdict
Millers Diesel Power Ecomax stands out as a high-quality diesel fuel additive that delivers on its promises. With its comprehensive approach to fuel treatment 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. Its long-standing presence in the market and popularity among both everyday drivers and professionals further validates its effectiveness and value.
