Hot Shot’s Secret Diesel Extreme is a premium 6-in-1 diesel additive designed to clean, protect, and enhance the performance of diesel engines. It improves fuel economy, increases horsepower, and reduces DPF regeneration cycles, all while being safe for emissions equipment.

• Most concentrated detergent formula on the market
• Removes and prevents internal and external diesel injector deposits (IDIDs & EDIDs)
• Increases cetane rating by up to seven points for improved combustibility and fuel economy
• Includes lubricity enhancer, water dispersant, rust inhibitors, and fuel stabilizer
• Improves cold starts, eliminates black smoke, and increases reliability
• Safe for all diesel engines and emissions equipment
• 100% satisfaction or your money back
• Guaranteed not to void manufacturer’s warranty
• Prop 65 Warning: Cancer and Reproductive Harm

Hot Shot’s Secret Diesel Extreme is engineered as the ultimate solution for cleaning and protecting diesel engines, especially in the era of Ultra-Low Sulfur Diesel. With its 6-in-1 formula, Diesel Extreme tackles a wide range of fuel system issues, from internal and external diesel injector deposits (IDIDs and EDIDs) to varnish and other deposits that cause premature wear on critical components like fuel pumps and injectors. Its concentrated detergents remove existing deposits and prevent future buildup, ensuring a cleaner, more efficient fuel system.

Diesel Extreme boosts your diesel fuel’s cetane rating by up to seven points, improving combustibility, increasing horsepower, and enhancing fuel economy. With better combustibility, Diesel Extreme reduces the number of Diesel Particulate Filter (DPF) regeneration cycles, lowering maintenance needs. In addition to cleaning and improving performance, this additive also contains a lubricity enhancer, a water dispersant, rust and corrosion inhibitors, and a fuel stabilizer for complete protection of your fuel system.

This product is recommended for use in all diesel engines and is safe for emissions systems, including modern DPF and catalytic systems.

Expert Diesel Advice
100% satisfaction or your money back
Guaranteed not to void manufacturer’s warranty
Prop 65 Warning: Cancer and Reproductive Harm