Highly effective fluid for flushing passenger car diesel particulate filters (DPF/FAP) after cleaning with Pro-Line Diesel Particulate Filter Cleaner when installed. Secures optimum vehicle handling, engine performance and low fuel consumption. The layer of soot is softened by the cleaner, and the soot is dissolved and distributed in the diesel particulate filter so that it can be burned off with normal regeneration. Flushing occurs with a DPF pressurized tank spray gun (part no. 7946) and the specially developed DPF-Probe with 5 interchangeable tips (part no. 7945).