在汽車保養(yǎng)中，許多車主被“變速箱終身免維護”的說法誤導(dǎo)，導(dǎo)致變速箱在行駛十幾萬公里后出現(xiàn)嚴重故障。事實上，自動變速箱的工作環(huán)境出彩為苛刻，內(nèi)部溫度常高達120℃，變速箱油肩負著潤滑、清潔、散熱和傳遞動力的多重使命。隨著時間推移，油液必然氧化變質(zhì)，產(chǎn)生油泥并堵塞精密閥體。因此，定期養(yǎng)護是預(yù)防維修的非常有效手段。

In car maintenance, many car owners are misled by the statement that "the gearbox is maintenance free for life", resulting in serious malfunctions of the gearbox after driving tens of thousands of kilometers. In fact, the working environment of automatic transmissions is extremely harsh, with internal temperatures often reaching up to 120 ℃. Transmission oil shoulders multiple missions of lubrication, cleaning, heat dissipation, and power transmission. Over time, the oil will inevitably oxidize and deteriorate, producing sludge and clogging the precision valve body. Therefore, regular maintenance is the most effective means of preventive repair.

科學(xué)的養(yǎng)護首先需要遵循合理的更換周期。通常建議AT自動變速箱每4萬至6萬公里更換一次油液，雙離合變速箱每6萬至8萬公里檢查或更換。對于常在擁堵路段行駛或駕駛風(fēng)格激進的車主，應(yīng)適當(dāng)縮短周期。其次，換油方式的選擇至關(guān)重要。傳統(tǒng)的重力換油只能排出約50%的舊油，而循環(huán)機換油通過壓力循環(huán)，換油率可達90%以上，能更有效地清洗內(nèi)部油路。但需注意，對于出眾里程且從未換過油的車輛，盲目使用循環(huán)機可能導(dǎo)致大塊油泥脫落堵塞閥體，需由專業(yè)技師評估。

Scientific maintenance first requires following a reasonable replacement cycle. It is usually recommended to replace the oil every 40000 to 60000 kilometers for AT automatic transmissions and every 60000 to 80000 kilometers for dual clutch transmissions. For car owners who often drive on congested roads or have aggressive driving styles, the cycle should be appropriately shortened. Secondly, the choice of oil change method is crucial. The traditional gravity oil change can only discharge about 50% of the old oil, while the oil change rate of the circulation machine can reach over 90% through pressure circulation, which can more thoroughly clean the internal oil circuit. However, it should be noted that for vehicles with extremely high mileage and never changed oil, blindly using the circulation machine may cause large pieces of oil sludge to fall off and block the valve body, which needs to be evaluated by professional technicians.

的駕駛習(xí)慣是非常好的“免費保養(yǎng)”。冷車啟動后應(yīng)溫和駕駛，待油溫上升后再正常加速；在擁堵路段，雙離合車型可切換至手動模式限制換擋次數(shù)，或掛入N擋減少離合器半聯(lián)動磨損；堅決杜絕空擋滑行和頻繁急加速、急剎車。這些看似微小的習(xí)慣，能出彩大減輕變速箱的內(nèi)部負荷，讓其長久保持平順。

The driving habit is the best 'free maintenance'. After starting the cold car, drive gently and wait for the oil temperature to rise before accelerating normally; On congested roads, dual clutch models can switch to manual mode to limit the number of gear shifts, or shift into N gear to reduce semi clutch wear; Resolutely eliminate coasting in neutral and frequent sudden acceleration and braking. These seemingly small habits can greatly reduce the internal load of the gearbox and keep it smooth for a long time.

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