Auto Systems and Repair
Manual Transmission Fluid Replacement
Manual transmission fluid lubricates and removes heat from internal components in the manual transmission. The fluid replaced every 30,000 miles to ensure proper lubrication of the gears and bearings within the gearbox.
To replace the manual transmission fluid, the mechanic drives the vehicle to get the fluid warm. Then, the drain plug at the bottom of the transmission is removed to allow the fluid to drain. The plug is then reinserted, and the transmission is filled with fresh fluid.
Manual transmissions generally use gear oil, but may use common engine oil; check the owners manual for the recommended lubricant.
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