變速箱油（ATF）是自動(dòng)變速箱正常工作的生命線。它承擔(dān)著傳遞液壓動(dòng)力、潤(rùn)滑運(yùn)動(dòng)部件、散熱冷卻、清潔內(nèi)部雜質(zhì)四大核心功能?？梢哉f，變速箱80%以上的故障，追根溯源都與油品問題有關(guān)。

Transmission fluid (ATF) is the lifeline for the normal operation of automatic transmissions. It undertakes four core functions: transmitting hydraulic power, lubricating moving parts, dissipating heat and cooling, and cleaning internal impurities. It can be said that over 80% of gearbox failures are traced back to oil quality issues.

油品檢查是非常直觀的診斷手段。正常的ATF應(yīng)為鮮紅色或明亮的黃色、透明、無雜質(zhì)、無刺激氣味。通過油品的外觀可以初步判斷變速箱的健康狀況：

Oil inspection is the most intuitive diagnostic method. Normal ATF should be bright red or bright yellow, transparent, free of impurities, and have no irritating odor. The appearance of the oil can preliminarily determine the health condition of the gearbox:

油液變黑、污濁：說明變速箱內(nèi)部的摩擦材料已經(jīng)燒損，需要解體大修。

The oil turns black and dirty: it indicates that the friction material inside the gearbox has been burned and needs to be disassembled for major repairs.

油液呈粉色、粘稠乳狀：說明變速箱內(nèi)部已經(jīng)進(jìn)水——非常常見的原因是散熱系統(tǒng)水箱內(nèi)部腐蝕導(dǎo)致油水混合，也可能是車輛涉水后通過透氣孔進(jìn)水。初期可通過2-3次換油解決，若已超過30天或行駛300公里以上，則建議大修。

The oil is pink and viscous in appearance, indicating that water has entered the gearbox. The most common cause is corrosion inside the cooling system water tank, leading to oil-water mixing. It may also be due to water entering through the ventilation holes after the vehicle has been submerged in water. In the initial stage, it can be solved by changing the oil 2-3 times. If it has been more than 30 days or driven for more than 300 kilometers, it must be overhauled.

油液呈灰色、伴有煙霧和刺激氣味：說明變速箱內(nèi)部已經(jīng)嚴(yán)重高溫，行星齒輪等部件可能已經(jīng)燒毀，需立即大修。

The oil appears gray, accompanied by smoke and a pungent odor: it indicates that the internal temperature of the gearbox is severely high, and components such as planetary gears may have been burned out, requiring immediate major repairs.

換油周期是預(yù)防故障的關(guān)鍵。自動(dòng)變速箱油建議在車輛每行駛?cè)昊蛄f(wàn)公里時(shí)更換。頻繁在市區(qū)擁堵路況行駛的車輛，換擋頻繁、負(fù)荷較大，應(yīng)適當(dāng)縮短換油周期；經(jīng)常跑高速的車輛，變速箱工作狀態(tài)較為穩(wěn)定，可適當(dāng)延長(zhǎng)。不同類型變速箱的換油周期也有差異——AT變速箱約6-8萬(wàn)公里，CVT約4-6萬(wàn)公里。

The oil change cycle is the key to preventing malfunctions. It is recommended to replace the automatic transmission fluid every three years or 60000 kilometers of vehicle operation. Vehicles frequently driving in congested road conditions in urban areas, with frequent gear shifts and heavy loads, should shorten their oil change intervals appropriately; Vehicles that frequently drive on the highway have a stable gearbox operation, which can be extended appropriately. The oil change intervals for different types of transmissions also vary - AT transmissions are about 60000 to 80000 kilometers, while CVT transmissions are about 40000 to 60000 kilometers.

換油時(shí)須注意以下要點(diǎn)：第一，建議選用符合原廠規(guī)定的專用油——不同變速箱對(duì)油液的摩擦系數(shù)要求不同，劣質(zhì)油品會(huì)導(dǎo)致內(nèi)部元件早期磨損。第二，換油時(shí)應(yīng)同步更換濾網(wǎng)（油格） ——就像換機(jī)油建議換機(jī)濾一樣，變速箱油格如果老化堵塞，內(nèi)部雜質(zhì)會(huì)循環(huán)流動(dòng)，導(dǎo)致精密元件卡滯。第三，確保散熱系統(tǒng)正常工作——溫度是自動(dòng)變速箱的首要?dú)⑹?，散熱不良?huì)導(dǎo)致油溫過高、加速油品劣化。

When changing the oil, the following points should be noted: Firstly, special oil that meets the original factory regulations must be selected - different transmissions have different requirements for the friction coefficient of the oil, and inferior oil can cause early wear of internal components. Secondly, when changing the oil, the filter screen (oil grid) should be replaced simultaneously - just like changing the oil filter is necessary for changing the engine oil. If the transmission oil grid ages and becomes clogged, internal impurities will circulate and cause precision components to get stuck. Thirdly, ensure that the cooling system is working properly - temperature is the primary killer of automatic transmissions, and poor cooling can lead to high oil temperature and accelerated oil degradation.

關(guān)于換油方式，常見的包括重力換油和循環(huán)機(jī)換油兩種。重力換油操作簡(jiǎn)單但換油不有效；循環(huán)機(jī)換油通過同步回收舊油與加注新油，維持變速箱內(nèi)油量動(dòng)態(tài)平衡，換油更有效。但無論采用哪種方式，確保油品型號(hào)正確、避免液壓系統(tǒng)進(jìn)氣、檢查油量是否適宜都是建議注意的事項(xiàng)。

Regarding oil change methods, common ones include gravity oil change and circulation machine oil change. Gravity oil change operation is simple, but the oil change is not thorough; The oil change of the circulation machine is achieved by synchronously recovering old oil and adding new oil to maintain the dynamic balance of the oil volume in the gearbox, making the oil change more thorough. However, regardless of the method used, ensuring the correct oil type, avoiding hydraulic system intake, and checking whether the oil level is appropriate are all necessary precautions.

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