Does Automatic Transmission Fluid Need to Be Replaced?
2 Answers
Automatic transmission fluid needs to be replaced. Once the automatic transmission fluid deteriorates or contains impurities, continued use will cause wear and tear on various components of the automatic transmission, leading to malfunctions. Replacement Interval: However, the specific replacement interval varies depending on the vehicle. Driving habits and usage environment can both affect the replacement cycle. Introduction to Automatic Transmission: The automatic transmission is a crucial component of the vehicle's drivetrain and is a precision part. Over time, the transmission fluid becomes thinner, leading to reduced lubrication performance, decreased sealing capability, increased resistance and wear, unstable pressure, and compromised hydraulic system accuracy. This results in reduced shift precision, affecting smoothness and response speed, and can easily cause issues such as excessive fluid temperature.
I've been driving automatic transmission cars for over a decade and know that transmission fluid must be changed regularly. I remember when my first car reached 50,000 kilometers, I felt hesitation during gear shifts. A check at the repair shop revealed the fluid had aged and turned dark brown. After changing to new fluid, it immediately became much smoother. Now, I change it every 60,000 kilometers, costing a few hundred yuan, but it prevents major issues. Transmission fluid oxidizes from heat during operation and accumulates metal particles. If not changed, the viscosity decreases, failing to properly lubricate internal gears and clutches. Over time, this leads to rough shifting, increased component wear, and in severe cases, transmission failure requiring repairs costing tens of thousands. Manuals recommend changing every 2-4 years, adjusted for driving habits. Since I frequently drive on highways, I maintain it more diligently. For fluid changes, choose either gravity draining or professional flushing for safety and reliability. Don't neglect this maintenance—it protects your car and saves money with peace of mind.
