How High is the Exhaust Pipe Temperature of a Diesel Vehicle?
2 Answers
Under a general exhaust pressure of 20kg, the exhaust temperature is around 90 degrees Celsius. Below are relevant details regarding exhaust pipe temperature: 1. Vehicle Model: The outlet temperature at the final exhaust pipe varies depending on the vehicle model, the length of the exhaust pipe, and the number of mufflers. Generally, the exhaust temperature for passenger cars ranges between 30-50 degrees Celsius. At the cylinder outlet, the temperature for gasoline vehicles is between 800-110 degrees Celsius. 2. Exhaust Pipe Length: The longer the exhaust pipe, the lower the outlet temperature at the tail end. Additionally, higher engine speeds result in higher exhaust temperatures. When the vehicle is idling, the outlet temperature is only around 30 to 50 degrees Celsius.
Having driven diesel vehicles for over a decade, I must say the exhaust pipe temperature is quite high, typically ranging between 300 to 500 degrees Celsius, depending on circumstances. For instance, during city traffic jams when the engine idles continuously, the exhaust pipe gets extremely hot – hot enough to burn if touched. Last winter when driving to ski, I had to stop my curious child from touching it after parking, fearing injury. On highways at steady speeds, temperatures are slightly lower, around 400 degrees; but during uphill climbs or heavy acceleration, it can easily surge above 500 degrees. This intense heat poses risks like igniting dry grass – parking on lawns might start small fires. My advice: after parking, wait about ten minutes for cooling before exiting, prioritizing safety.
