Highly effective fluid for cleaning clogged passenger car diesel particulate filters when installed. Dissolves hardened, dense and encrusted contaminants on the surface of diesel particulate filters. Secures optimum vehicle handling, engine performance and low fuel consumption. Regular cleaning in combination with flushing can help avoid expensive repair costs. Cleaning occurs with a DPF pressurized tank spray gun (part no. 7946) and the specially developed DPF-Probe with 5 interchangeable tips (part no. 7945).