What are some common misconceptions about lubricant usage?

发布时间：2023年03月10日 14:57

The oil level should ideally be maintained between the upper and lower markings on the dipstick. If there’s too much oil, it can leak into the combustion chamber through the clearance between the cylinder and the piston, where it will burn and form carbon deposits. These carbon deposits will accelerate wear on the cylinder and piston and speed up oil contamination.

Misconception 1: Add as much as possible.

Misconception 2: You should change the oil as soon as it turns black.

This understanding is one-sided. The motor oils used in modern vehicles generally contain detergents that can wash away the sticky film and black carbon deposits adhering to the pistons, dispersing them throughout the oil and thereby reducing the formation of high-temperature engine deposits. As a result, after being used for a period of time, the oil tends to darken in color—but this does not mean that the oil has completely deteriorated.

Misconception 3: You can keep topping up the engine oil without ever changing it.

During use, engine oil gradually deteriorates in quality due to factors such as contamination and oxidation. Simply topping up the oil without replacing it can only make up for the shortfall in quantity but cannot fully compensate for the loss of oil performance.

Misconception 4: Additives are highly useful.

Truly high-quality motor oil is a finished product equipped with multiple engine protection features. Its formulation already includes a variety of additives; adding other additives on your own not only fails to provide additional protection for your vehicle but can also easily react with the chemicals already present in the oil, thereby degrading its overall performance.

As the temperature drops, how should you choose lubricants?

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