How Many Liters of Engine Oil Does a Jetta Need?
1 Answers
Jetta Engine Oil Capacity Introduction: The Jetta requires approximately 4 liters of engine oil. The exact amount may vary slightly depending on the level of emissions. The Jetta can use 5W-40 or higher-grade engine oil. Engine oil serves multiple functions for the engine, including lubrication and wear reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, and shock absorption. Below are the detailed introductions: 1. Lubrication and Wear Reduction: A sufficiently thick oil film separates the surfaces of relatively sliding components, such as between the piston and cylinder, and between the crankshaft and bearings. To prevent excessive wear, an oil film must be established between these sliding surfaces. 2. Auxiliary Cooling: During engine operation, engine oil carries heat back to the oil pan, where it dissipates into the air, assisting the radiator in cooling the engine. However, the primary cooling effect comes from the water outside the engine block. 3. Sealing and Leak Prevention: Engine oil forms a seal between the piston rings and piston, reducing gas leakage and preventing contaminants from entering. 4. Rust and Corrosion Protection: Lubricating oil adheres to component surfaces, preventing contact with water, air, acidic substances, and harmful gases. 5. Shock Absorption: When pressure in the engine cylinder rises sharply, the load on the piston, piston rings, connecting rod, and crankshaft bearings increases suddenly. This load is transmitted and lubricated through the bearings, cushioning the impact load.
