How Often Should the Transmission Oil of a 4.2-Meter Truck Be Changed?

1 Answers
DiJoshua
07/29/25 11:24am
Transmission oil is generally changed every 3 years or 60,000 kilometers, depending on whether the oil has deteriorated. Below are detailed explanations: 1. Explanation one: Deteriorated lubricating oil will exhibit some common signs, such as turning black, having a strong or unusual odor, appearing cloudy, or having suboptimal viscosity. 2. Explanation two: Normal transmission oil should be odorless, semi-transparent, and red or yellow in color. If the transmission oil turns black or emits a burnt smell, it must be replaced immediately. Otherwise, it may lead to increased fuel consumption, reduced power, and even damage to the transmission case.
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