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 Engine oil is one of the most important factors that helps the engine operate with high efficiency and maintain it from damage, so it must be checked and changed on schedule on a regular basis.

The process of changing the engine oil after the car has been cut for a certain number of kilometers is one of the most important maintenance that is primarily responsible for the overall performance strength of the car, lengthening the engine's life expectancy, and maintaining its efficiency at a distinctive level over the years.

Sometimes, however, the oil is lost to his wife and his ability to perform in-engine functions for various reasons, including engine fatigue or long-distance travel without rest in hot weather or because of the poor quality of the oil, which causes considerable risk to the engine if it is not altered.

From the following lines, you can identify the most visible warning signs of engine oil damage:

- Note that the color of the oil has changed from brown or dark asparagus to dark black.

- Noisy noises and noise coming from the engine

- Illumination of the engine oil warning light in the car meter plate

- The engine temperature index is continuously rising

- The smell of engine oil leaks into the car compartment

There are also several signs that tell the driver of the engine oil damage and the need to change it, most notably:

• The color of the oil has been transformed into dark black, as a result of impurities and exposure to combustion.

• Lighting of the oil warning light in the dashboard must be checked immediately.

• Engine temperature, although the cooling cycle works regularly.

• White smoke from the exhaust of the car.

• Hearing noisy noises and noise from the engine, owing to the loss of oil and its wife's characteristics.

• The texture of the engine oil when examined is more like water.

The driver must examine the engine oil, especially when traveling long distances, or park the car and not use it for long periods, to ascertain the degree of color and viscosity of the oil and not to decrease it from the normal limit.

Attention must be given to changing the engine oil on time, where the distance is inscribed on the packaging when it is purchased, to maintain the quality of the engine, as well as to select the best oils that fit the quality of the car.