How Many Liters of Engine Oil Should Be Added During an Oil Change?
2 Answers
For a car oil change, sedans typically require around 4L, mid-size to large sedans need approximately 4.5L, and compact cars require about 3.5L. The oil level should be maintained between the upper and lower marks on the dipstick, as excessive oil can seep into the combustion chamber through the gap between the cylinder and piston, leading to carbon buildup. Engine oil, also known as motor lubricant, serves multiple functions: it lubricates and reduces friction, aids in cooling, provides sealing to prevent leaks, prevents rust and corrosion, and acts as a shock absorber. Engine oil consists of two main components: base oil and additives. The base oil is the primary constituent of the lubricant, determining its fundamental properties, while additives are crucial for compensating and enhancing the performance shortcomings of the base oil.
From my years of driving experience, let me talk about oil changes. The amount of oil required varies greatly between different cars. For example, my first small car took about 4 liters, while my current larger vehicle needs 5 to 6 liters. Smaller engine displacements generally require less oil—often 4-5 liters for engines below 2.0T—but never guess the amount. I remember one time I was too lazy to check the manual and estimated the quantity, ending up overfilling it. The excessive oil pressure caused leaks, making the engine dirty and costing extra money for cleanup. Since then, I always check the owner's manual before changing oil—it clearly states the recommended oil type and quantity. If you're doing it yourself, prepare in advance before buying oil. Usually, two 4-liter or 5-liter bottles are enough. After filling, use the dipstick to ensure the level is at the midpoint. Too little oil accelerates engine wear, while too much can cause foaming and reduce lubrication efficiency. I recommend going to a professional shop to save yourself the hassle.
