How often should the rear axle oil be changed?
1 Answers
Rear axle oil, also known as gear oil, does not have a fixed replacement cycle. It needs to be determined based on the vehicle's driving conditions and environment. Additionally, different oil brands may require different replacement intervals. Generally, rear axle oil should be changed every 20,000 to 30,000 kilometers. Owners can check the oil level every 7,500 kilometers and top it up if it is low. Below are the key properties of gear oil: 1. Gear oil has high viscosity, forming a thicker lubricating oil film, which provides relatively greater load-bearing capacity. 2. Sufficient extreme pressure and anti-wear properties. Extreme pressure and anti-wear properties are the most important characteristics of gear oil, primarily used to prevent wear, scuffing, and scoring of gear surfaces during operation. 3. Good demulsibility. If gear oil emulsifies upon contact with water, it can severely affect the formation of the lubricating oil film, leading to scuffing and wear. 4. Good oxidation stability and thermal stability, ensuring the service life of the oil. 5. Excellent anti-foaming properties. 6. Good rust and corrosion prevention. Corrosion and rust not only damage the geometric characteristics and lubrication state of gears but also further deteriorate the gear oil, creating a vicious cycle.
