What causes the 2020 Haval H9 to burn engine oil?

[LaBrayden]

Car burning engine oil is due to the aging of the exhaust valve, which draws away a large amount of engine oil without returning it to the oil pan. Here are the extended details: 1. The piston rings are stuck, preventing the engine oil from returning to the oil pan, resulting in a lack of engine oil and the phenomenon of burning oil. 2. The sealing valve of the turbocharger prevents the engine oil from returning, causing the phenomenon of burning oil, where the oil is not involved in combustion but is still lost. This can lead to the car losing one liter of engine oil every 1000 kilometers. 3. Improper replacement of the crankshaft ventilation belt can block the ventilation port, preventing the engine oil from returning. This issue is more common in vehicles with special design structures, such as the Citroen and Peugeot 1.2T engines. This engine design immerses the timing belt in the oil pan, requiring the timing belt to be replaced every 40,000 to 50,000 kilometers. Due to the unique design of these models, inexperienced repair shops may improperly replace the belt, easily blocking the crankshaft ventilation port and causing the engine oil to not return, resulting in the so-called burning oil phenomenon.