How Often Should the Transmission Fluid Be Replaced?

How Often Should the Transmission Fluid Be Replaced?

How Often Should the Transmission Fluid Be Replaced?

The transmission fluid should be replaced on a regular basis. Regardless of having a manual or automatic transmission fluid, regularly changing it will avoid costly transmission repairs.

Transmission fluid is a greasy lubricant for all moving parts inside a vehicle's transmission. In an automatic transmission, the fluid acts as a coolant, transmitting power from the engine to the transmission. Manual transmissions use different fluids, such as oils, motor oils and hypoid gear oils.

Most car manufacturers recommend a change in manual transmission fluid every 30,000-60,000 miles. For automatic transmission fluid, some car makers suggest a change every 40,000 miles. For practical purposes and to avoid expensive repair costs, the transmission fluid should be replaced regularly.