Why is there black carbon buildup in the Edge's exhaust pipe?

[EloiseFitz]

Black carbon buildup in the Edge's exhaust pipe is a normal phenomenon, as long as it is not a wet, greasy oil-like substance. If it appears oily, it indicates a more serious engine oil burning issue or the use of poor-quality gasoline. The car's exhaust pipe is a component installed between the engine and the muffler, serving to reduce vibration, lower noise, facilitate installation, and extend the lifespan of the exhaust muffler system. The Edge is a model under Changan Ford, with body dimensions of 4878mm in length, 1925mm in width, and 1770mm in height, and a wheelbase of 2850mm. In terms of appearance, the Edge luxury series features a bold exterior design, with a hexagonal grille seamlessly integrated with large full-LED headlights.