How Many Kilometers Should Gear Oil Be Replaced?
2 Answers
The replacement interval for gear oil varies depending on different situations: 1. If synthetic oil is used, it does not need to be replaced within 200,000 kilometers; 2. If mineral oil is used, it should be replaced every 40,000 to 60,000 kilometers. Gear oil, also known as transmission oil, can reduce wear on gears and other moving parts, extend gear life, reduce friction, and minimize power loss. Precautions for using gear oil: 1. Add and change it in a timely manner; 2. Replace gear oil promptly; 3. If the generator, starter carbon brushes, or rotor of the vehicle are contaminated with lubricating oil or grease, it may lead to poor performance or failure.
I've been driving for over a decade, having experience with both manual and automatic transmissions. The gear oil is always my top concern during maintenance. For manual transmissions, the gear oil typically needs replacement every 40,000 to 60,000 kilometers, while automatic transmissions can last longer, usually 60,000 to 80,000 kilometers without issues. However, road conditions make a significant difference. Since I often drive on mountain roads or haul heavy loads, which puts extra strain on the transmission, I replace the gear oil 10,000 to 20,000 kilometers earlier than usual. Last time, a friend's car had deteriorated gear oil that wasn't changed in time, causing the entire transmission to seize up. The repair cost over 8,000 yuan. Now during maintenance, I always make sure the dealership checks the oil's color. If it turns cloudy or black, I replace it immediately.
