Does a Manual Transmission Need Transmission Fluid Replacement?
1 Answers
Manual transmissions do require transmission fluid changes. The hazards of not replacing transmission fluid are as follows: 1. Transmission fluid not only lubricates but also cools the transmission. Prolonged use of old fluid can cause the transmission to overheat continuously, further weakening the viscosity and lubricity of the fluid, leading to additional friction. In automatic transmissions, O-rings, gaskets, rubber seals, and other components can also deform or melt due to overheating. 2. Long-term neglect of transmission fluid changes can cause the fluid to thicken, potentially blocking the transmission cooler, resulting in excessively high fluid temperatures and accelerated wear. 3. Deterioration of lubricity. Transmission fluid continuously breaks down with use and time. Without replacement, its viscosity and lubricity will decline, and it may adhere to critical components. Friction from contaminated fluid can cause metal particles suspended in the oil to continuously abrade bearings, races, gears, and other parts, potentially leading to transmission shuddering, inability to shift, misalignment, or even gear and bearing failure.