Liqui Moly Diesel Purge

Liqui Moly Diesel Purge is a high-performance diesel fuel system cleaner developed to restore engine power, enhance fuel efficiency, and prolong the life of your diesel engine. Whether you drive a car, truck, van, or operate heavy machinery, this powerful solution cleans your injectors, removes carbon deposits, and improves combustion—right where it counts.

Specifically formulated in Germany, Diesel Purge works directly on the injection system components, including injectors and pump nozzles, to dissolve stubborn deposits caused by low-quality diesel fuel or extended use. These contaminants can significantly affect fuel atomization and combustion, leading to rough idling, increased fuel consumption, knocking noises, power loss, or even black smoke emissions.

One of the standout features of Liqui Moly Diesel Purge is its ability to be used both as an additive mixed with diesel fuel or in a direct-purge method by feeding it straight into the fuel system. This dual application method makes it suitable for DIY users and professional mechanics alike. You can pour it into your fuel tank for regular maintenance or use it as part of a deeper cleaning session to restore optimal injector performance.

Compatible with all types of diesel engines—including common rail and direct-injection systems—Diesel Purge not only cleans the fuel system but also prevents corrosion, reduces exhaust emissions, and improves engine longevity. It’s especially effective before emissions testing or after prolonged idle periods, like post-winter startup or long-term parking.

Backed by decades of German engineering, Liqui Moly Diesel Purge is a trusted choice for diesel vehicle owners around the world. With just one treatment, many users report noticeably smoother engine operation, quieter performance, and improved throttle response. For best results, use regularly every 2,000–3,000 miles or as needed based on driving conditions.

Make your engine run like new again—clean, quiet, and efficient—with Liqui Moly Diesel Purge.