ULS Diesel Enhancer is an extremely safe and highly effective, heavy duty, complete diesel fuel system cleaner and conditioner. It thoroughly cleans, lubricates and protects High Pressure Injection diesel fuel systems (CRDi, HPCR and HEUI) running today’s Ultra-low Sulfur Diesel. Not only does it clean andrestore failing injectors, it also boosts diesel fuel lubricity – saving High Pressure Injection diesel engines from the notorious and very expensive-to-repair “Injector Rattle“, and many other problems that stem from our modern diesel fuel. Perfect for all types of diesel engines. Find out more…