JLM PAT Fluid is a fuel-borne catalyst, designed as an aftermarket replacement for diesel particulate filter additives used to aid regeneration of particulate filters fitted to diesel cars & vans. The JLM PAT Fluid is equal in performance to Eolys products supplied by Citroen/Peugeot. The JLM PAT Fluid is a cerium based fuel additive to support the regeneration of diesel particulate filters. This product is suitable as an aftermarket replacement for the following product part numbers. Peugeot ? Citroen. Particulate fluid ? Part Numbers – 973665, 997995, 973685, 973686, C973685, C973686. Satacen Particulate Fluid ? 25 , 3.