How Long Does the Great Wall Pao's Particulate Filter Take to Self-Clean?
2 Answers
Great Wall Pao's particulate filter self-cleaning typically takes around 5-10 minutes. Below is an introduction to particulate filter self-cleaning related content: Poor fuel quality: Prolonged use of fuel with high impurities can not only clog the engine injectors but also increase exhaust particulate matter, leading to particulate filter blockage. Not using specialized engine oil: National VI vehicle models require low-ash engine oil. If low-ash engine oil is not used, the probability of DPF blockage increases. Long-term idling driving: Idling driving can cause carbon buildup in the engine. At the same time, under idling conditions, fuel cannot be completely burned, affecting the increase in exhaust particulate matter, making the DPF very susceptible to blockage.
I've been driving the Great Wall Pao for over two years, and the particulate filter self-cleaning is quite common. It usually triggers automatically when you're driving on the highway or maintaining a speed above 60 km/h, lasting about 10 to 20 minutes each time. Once when I was driving back to my hometown from the city, a prompt suddenly appeared on the dashboard, so I kept my foot on the accelerator for about 15 minutes until it finished. Remember not to turn off the engine during the self-cleaning process, or the system will restart the count. Also, the duration can be longer in cold weather; the longest I've experienced was nearly half an hour at minus five degrees Celsius. Regularly driving at high speeds and avoiding prolonged low-speed driving can help reduce the frequency of self-cleaning.
