汽車保養時需要更換或檢查的油液主要包括以下幾種：

The oils that need to be replaced or checked during car maintenance mainly include the following:

一、發動機機油

1、 Engine oil

作用：發動機機油是汽車發動機內部的潤滑劑，主要作用是潤滑、冷卻、清潔、密封和防銹。它能夠減少發動機各部件之間的摩擦和磨損，延長發動機的使用壽命。

Function: Engine oil is the lubricant inside the car engine, mainly used for lubrication, cooling, cleaning, sealing, and rust prevention. It can reduce friction and wear between various components of the engine, extending the service life of the engine.

更換周期：

Replacement cycle:

合成機油：抗氧化性能較好，一般每6000至8000公里或一年左右更換一次。

Synthetic engine oil: It has good antioxidant performance and is generally replaced every 6000 to 8000 kilometers or about a year.

礦物機油：更換周期相對較短，一般每5000公里或半年左右更換一次。

Mineral engine oil: The replacement cycle is relatively short, usually every 5000 kilometers or about six months.

注意：不同品牌和車型的發動機機油更換周期可能有所不同，建議參考汽車保養手冊進行更換。

Attention: The engine oil change cycle may vary among different brands and models. It is recommended to refer to the car maintenance manual for replacement.

二、變速箱油

2、 Transmission fluid

作用：變速箱油是變速箱內部的潤滑劑，主要作用是潤滑、冷卻、清潔和防銹。它能夠確保變速箱內部齒輪和軸承等部件的正常運轉，減少磨損和故障。

Function: Transmission oil is a lubricant inside the transmission, mainly used for lubrication, cooling, cleaning, and rust prevention. It can ensure the normal operation of internal components such as gears and bearings in the gearbox, reducing wear and failure.

更換周期：

Replacement cycle:

自動變速箱油：理論壽命可達15萬公里，但一般建議在6至10萬公里左右更換一次。在惡劣行駛條件下，應提前更換。

Automatic transmission fluid: The theoretical lifespan can reach 150000 kilometers, but it is generally recommended to replace it every 60000 to 100000 kilometers. Under harsh driving conditions, it should be replaced in advance.

手動變速箱油：更換周期相對較短，一般每4至6萬公里更換一次。同樣，在惡劣行駛條件下也應提前更換。

Manual transmission oil: The replacement cycle is relatively short, usually every 40000 to 60000 kilometers. Similarly, it should be replaced in advance under harsh driving conditions.

注意：原裝變速箱油是根據變速箱的結構和材料專門配制的，不建議隨意更換其他品牌的變速箱油。

Attention: The original transmission oil is specially formulated according to the structure and materials of the transmission, and it is not recommended to replace it with other brands of transmission oil at will.

三、剎車油

3、 Brake fluid

作用：剎車油是汽車制動系統中的重要組成部分，主要作用是傳遞制動力。它能夠確保剎車系統在各種條件下都能正常工作，提高行車安全性。

Function: Brake fluid is an important component of the automotive braking system, mainly used to transmit braking force. It can ensure that the braking system can work normally under various conditions, improving driving safety.

更換周期：剎車油具有吸濕性，會吸收空氣中的水分，導致沸點降低。因此，建議每2年或4至6萬公里更換一次剎車油。在潮濕或多雨地區，應適當縮短更換周期。

Replacement cycle: Brake oil has hygroscopicity and can absorb moisture from the air, leading to a decrease in boiling point. Therefore, it is recommended to replace the brake fluid every 2 years or 40000 to 60000 kilometers. In humid or rainy areas, the replacement cycle should be appropriately shortened.

四、動力轉向油

4、 Power steering fluid

作用：動力轉向油是汽車轉向系統中的重要潤滑劑，主要作用是提供轉向助力，減輕駕駛員的轉向負擔。

Function: Power steering fluid is an important lubricant in the automotive steering system, mainly used to provide steering assistance and reduce the steering burden on the driver.

更換周期：動力轉向油的更換周期一般為每4萬公里左右。如果方向盤轉動變得沉重或有噪音，可能是動力轉向油不足或變質所致，此時應及時檢查和更換動力轉向油。

Replacement cycle: The replacement cycle of power steering oil is generally around every 40000 kilometers. If the steering wheel turns heavy or makes noise, it may be due to insufficient or deteriorated power steering oil. At this time, the power steering oil should be checked and replaced in a timely manner.

五、其他油液

5、 Other fluids

冷卻液/防凍液：冷卻液/防凍液的主要作用是冷卻發動機并防止其凍結。建議每3至5年或10萬公里左右更換一次冷卻液/防凍液，并定期檢查液位和冰點。

Coolant/Antifreeze: The main function of coolant/antifreeze is to cool the engine and prevent it from freezing. It is recommended to replace the coolant/antifreeze every 3 to 5 years or around 100000 kilometers, and regularly check the fluid level and freezing point.

玻璃水：玻璃水用于清洗汽車擋風玻璃，確保駕駛員視野清晰。建議根據使用情況及時添加或更換玻璃水。

Glass water: Glass water is used to clean the windshield of a car to ensure clear visibility for the driver. It is recommended to add or replace glass water in a timely manner according to usage.

綜上所述，汽車保養時需要更換或檢查的油液主要包括發動機機油、變速箱油、剎車油、動力轉向油以及冷卻液/防凍液等。這些油液的定期更換和檢查對于確保汽車的正常運轉和行車安全至關重要。

In summary, the oils that need to be replaced or checked during car maintenance mainly include engine oil, transmission oil, brake oil, power steering oil, and coolant/antifreeze. Regular replacement and inspection of these fluids are crucial for ensuring the normal operation and driving safety of the car.

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