LIQUI MOLY 500mL Pro-Line Diesel Particulate Filter PurgeCleaning is made with the compressed air gun for DPF (item no. 7946) and the specially developed DPF Probe with 5 interchangeable tips (part no. 7945). The diesel particle filter must be accessed depending on the vehicle type. In order to do this, the temperature or pressure sensor on the diesel particle filter must be removed on most vehicles. Observe: When cleaning, the particle filter's temperature should be below 104F. On some vehicles the diesel