The Rislone Diesel Fuel System Treatment, No. 4740, takes the place of six types of diesel fuel additives. The product works as a ULSD sulfur substitute, injector and complete fuel system cleaner, upper cylinder lubricant, anti-gel cold flow improver, fuel stabilizer and conditioner, and even Cetane booster. It improves the quality of diesel fuel by increasing its cleaning ability, adding lubrication, removing contaminants, fighting corrosion and helping to prevent the fuel from gelling and going bad. Each dual-cavity bottle comes with a patented EZ Nozzle spout attached that is designed to work with diesel misfueling devices and capless diesel systems. Designed to work with all light, medium and heavy duty diesel engines, including ULSD and biodiesel, it will not harm the engine or any emissions components.
