Will it have an impact if the engine oil is not changed for over a year?
1 Answers
Not changing the car engine oil for a long time will significantly reduce its sealing, lubrication, and cooling effects. The impurities in the oil can wear internal components, thereby affecting the engine's lifespan and making it more prone to malfunctions, leading to safety hazards. The following are specific introductions about the functions of engine oil: 1. Lubrication: Dry friction between metals can cause surface damage to metal parts, hence the need for the lubricating effect of engine oil for protection. With the lubrication of engine oil, metal parts can avoid direct contact, instead floating on the lubricating oil. This is commonly referred to as the "oil film bearing" effect. 2. Cleaning: After prolonged engine operation, metal burrs inevitably fall off due to friction. If these burrs fall off, they may threaten other metal surfaces. Therefore, it is essential to rely on the flushing action of the engine oil to "carry away" these metal burrs. 3. Cooling: The interior of the engine operates under high temperatures. While the cylinder relies on the cooling system for cooling, certain internal components cannot depend on the cooling system and can only dissipate working heat through the circulation of engine oil.