A good car is very important, but the quality of car oil should not be ignored.

Auto oil is a special fluid that lubricates and protects the car engine.

It plays a variety of roles such as lubrication, cooling, cleaning, and sealing when the engine is running, and is a key factor in ensuring normal engine operation and extending engine life.

The selection of automotive motor oil requires consideration of a variety of factors, such as the environment in which the car is used, the model of the engine, the operating condition, and the mileage driven.

The following are a few suggestions for selecting motor oil:

1. Choose a suitable viscosity grade.

The viscosity grade of motor oil refers to the fluidity of motor oil, which is usually expressed by a code consisting of numbers and letters, such as SAE 5W-30.

The number indicates the fluidity of the oil at low temperatures, and the letter indicates the performance of the oil at high temperatures.

Choosing a suitable viscosity grade can ensure the lubricity and protection of the oil at different temperatures.

2. Choose the suitable API and SN grade.

API is the performance standard for motor oil set by American Petroleum Institute, and the latest version is API SN.

SN-grade motor oil has better cleanliness and protection performance and can be used in modern high-performance engines.

Choosing SN-grade engine oil can improve the protection and performance of the engine.

3. Choose the oil according to the vehicle's use environment.

If the vehicle often operates in a harsh environment such as high temperature, high humidity, and high altitude, it is recommended to choose a fully synthetic motor oil with better high-temperature oxidation resistance and cleaning performance.

Car oil will gradually age, pollution and loss in the process of use, and need regular replacement and maintenance.

The following are a few recommendations for oil maintenance:

1. Change the oil regularly.

In general, it is recommended to change the oil once every 5,000-10,000 km or 6 months of driving.

If it is a high-performance vehicle or a vehicle operating in a harsh environment, the replacement cycle can be appropriately shortened.

2. Change the oil filter regularly.

The oil filter can filter the impurities and pollutants in the oil to protect the engine.

It is recommended to replace the oil filter together with each oil change, or by the requirements of the vehicle's manual replacement cycle.

3. Pay attention to the addition and replenishment of engine oil.

If the amount of oil is insufficient, you should add oil that meets the requirements in time.

It is not recommended to add different brands and models of engine oil to avoid affecting the performance and life of the oil.

It is recommended that owners understand the oil requirements of their vehicles, choose the right brand and model of oil, and change and maintain the oil regularly according to the use of the vehicle.