10 Best Diesel System Cleaner 2025 in the United States

Hot Shot's Secret Everyday Diesel Treatment 32oz is a versatile 6-in-1 diesel additive designed to keep diesel engines running smoothly and efficiently. One of its standout features is cleaning power, as it effectively cleans both internal and external injector deposits, enhancing fuel lubricity and promoting engine longevity. Additionally, it prevents rust and corrosion by demulsifying moisture, adding stability to the fuel, and protecting fuel system components from oxidation and degradation.

The product's ease of use is another notable strength; simply add 1-2 ounces for every 25 gallons of diesel at each fill-up. This regular application not only boosts cetane levels by up to 7 points, improving fuel economy and reducing maintenance costs, but also makes the product convenient for daily use. However, the frequency of use might be seen as a drawback for some users who prefer a less frequent application schedule.

Regarding compatibility, the product seems to be suitable for a wide range of diesel engines, ensuring broad usability. While the environmental impact is not explicitly detailed, the manufacturer's commitment to making equipment last longer and improving efficiency suggests a consideration of environmental factors. This diesel additive is a robust choice for those looking to maintain their diesel engines efficiently, though the need for regular use might require some commitment.

The Archoil AR6400-D Diesel Fuel System Cleaner is a versatile and effective option for maintaining your diesel vehicle's engine components. It is compatible with all diesel systems, making it a convenient choice regardless of your specific vehicle type. The cleaning power of this product is a major strength; it targets critical areas such as injectors, turbos, DPFs (Diesel Particulate Filters), and EGR (Exhaust Gas Recirculation) systems, helping to improve performance and fuel economy while ensuring smoother idling.

This comprehensive cleaning capability is particularly beneficial for vehicles experiencing reduced performance due to build-up and deposits. The inclusion of additives is another strong point, as these not only enhance cleaning but also contribute to the restoration of fuel system performance. This can be especially useful for Power Stroke engine users when combined with the Archoil AR9100 Friction Modifier to address injector stiction issues.

Ease of use is quite high with the Archoil AR6400-D, as it comes in a liquid form that is easy to pour, and one 12 oz bottle treats up to 40 gallons of diesel fuel. It only needs to be used every 5,000 miles, which means you won’t have to apply it too frequently. The Archoil AR6400-D is a highly effective cleaner for diesel systems that offers significant benefits in terms of performance restoration and ease of use.

The STP Fuel System Cleaner and Stabilizer is designed to keep your vehicle's fuel intake system clean, which can help save gas and restore performance. It boasts strong cleaning power, removing deposits from the entire fuel system, and includes additives that help inhibit corrosion. This product is versatile, being compatible with cars, trucks, and motorcycles, including those with cap-less fuel tanks.

The 12-pack of 5.25 fl oz bottles makes it convenient for regular use, although the frequency of application may vary depending on vehicle usage and condition. The cleaner is straightforward to use, simply being added to the fuel tank. However, there's limited information on its environmental impact, which could be a consideration for eco-conscious users.

If you are looking for a reliable solution to maintain fuel system cleanliness and performance, this product is a solid choice, but you may want to research further regarding its environmental footprint.