Daimler Trucks North America is dedicated to keeping trucks on the road and out of the shop. With proper maintenance using Detroit genuine parts, owners, drivers and fleet managers will experience maximum engine performance, and save time, money and inconvenience. One of the most important ways to achieve that is to maintain a clean diesel particulate filter (DPF). The Detroit liquid DPF cleaning process is the most efficient and effective way to remove ash from the filter and return it to like new condition. The Detroit liquid DPF cleaning process removes 95 percent of the ash, soot and contaminates from the filter, leading to longer service intervals, better fuel efficiency, fewer breakdowns and overall lower cost of operation.