Why Do Cars Need Oil Changes?

[SanErin]

During the operation of engine oil, the additives are gradually depleted, and pollutants generated from combustion mix with the oil to form sludge and deposits. Over time, these contaminants not only accelerate engine wear but can also lead to serious consequences such as engine rusting, corrosion, and poor heat dissipation. Therefore, timely oil changes are the best way to care for your engine. The functions of engine oil for the engine are: 1. Lubrication: The primary function of engine oil is lubrication. It forms an oil film on the surfaces of the engine's metal components, reducing wear between metal surfaces. 2. Cleaning: It breaks down sludge and deposits generated during engine operation, keeping the engine internals clean. 3. Rust Prevention: It neutralizes acidic substances produced during engine operation and forms a rust and corrosion-resistant layer, preventing metal components from oxidizing and rusting. 4. Sealing: It seals the gaps between pistons and the cylinder block, ensuring complete fuel combustion and improving fuel efficiency. 5. Cooling: It dissipates high temperatures caused by engine wear, protecting various engine components.