How Much Engine Oil Should Be Added During Maintenance?

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For small-displacement vehicles, approximately 3.2 to 3.6 liters of engine oil should be added during each maintenance, while larger-displacement vehicles require around 4.5 liters. Below is expanded information about engine oil: 1. Engine oil is extremely important for engine operation as it performs two major functions: lubrication and heat dissipation. 2. Excessive oil can increase the rotational resistance of the crankshaft, reduce engine output power, and cause the excess oil to enter the combustion chamber, leading to oil burning, blue smoke emission, and increased fuel consumption. 3. The residue from burned oil can accumulate on the walls of the combustion chamber, reducing its space and thereby lowering the engine's compression ratio. It can also accelerate wear on the cylinders and pistons, shortening the vehicle's lifespan. 4. When adding lubricating oil, it is advisable to keep the oil level slightly below the mark on the dipstick. Additionally, factors such as oil type, season, climate, engine displacement, and technical performance should be considered. 5. It is best to choose a professional automotive maintenance center where experts can carefully assess the vehicle, select the appropriate oil, and perform maintenance procedures meticulously to prevent potential faults.