Posted on 7/25/2025
Your car’s transmission fluid plays a crucial role in maintaining smooth operation of your transmission, providing lubrication, reducing heat, and ensuring proper shifting. Yet, many drivers believe outdated or incorrect information about transmission fluid, leading to expensive repairs and unnecessary headaches. Let’s debunk five common myths about transmission fluid so you can keep your vehicle in top shape. Myth 1: Transmission Fluid Never Needs to Be Changed Many drivers believe that transmission fluid is a “lifetime” fluid that never requires changing. While some manufacturers promote long-life fluids, no fluid truly lasts forever. Over time, transmission fluid degrades due to heat and friction, losing its protective qualities and becoming contaminated with debris from normal wear. If you don’t replace the fluid, it can lead to poor shifting performance, overheating, and premature transmission failure. Most experts recommend changi ... read more