The transmission system is essential to a functional vehicle. Without it, you simply can’t go anywhere. Yet roadside breakdowns due to transmission trouble happen more often than you may think. In general, automatic transmission repairs are more complicated, as they involve more intricate parts than manual transmissions.Clean transmission fluid is necessary for both manual and automatic transmissions, as it both cools and lubricates the interlocking gears for seamless gear shifting. In automatic transmissions, transmission fluid serves the added purpose of using hydraulic pressure to shift the gears automatically.
The type of transmission fluid used in manual transmission systems will largely vary depending on the make, model, and specifications outlined in the vehicle owner's manual. Manual transmissions may use manual gear oil, or transmission fluid specific to each vehicle make and model.