Highly effective fluid for cleaning clogged diesel particulate filters when installed. Dissolves contaminants in 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) or the DPF spray Probe long (part no. 20630).