Is it normal for a new car's exhaust pipe to have black soot?

[DeLola]

Black soot in the exhaust pipe is a normal phenomenon, and it is almost unavoidable for any fuel-powered vehicle. This is because vehicle exhaust inherently contains carbon black components, especially in new cars where the engine has not fully broken in. For vehicles that frequently operate in urban areas with stop-and-go traffic, the accumulation of black soot tends to be more noticeable. Below is some related information about car exhaust pipes: 1. Introduction: The automobile exhaust bellows, also known as the exhaust pipe flexible hose, is installed between the engine exhaust manifold and the muffler. It provides a flexible connection for the entire exhaust system, serving to reduce vibration and noise, facilitate installation, and extend the lifespan of the exhaust muffler system. 2. Usage: It is primarily used in light-duty vehicles, compact cars, and buses. Its structure consists of a double-layer bellows covered with a steel wire mesh sleeve, with clamping rings at both ends. To enhance noise reduction, the bellows may include an expansion joint or mesh sleeve inside.