Every system in the vehicle plays a unique role in the smooth operation of the vehicle on the road. But certain systems are so important that failure of these can stall the operations of the vehicle. One such important system or a part is the transmission of the vehicle. The gear in the transmission takes power from the engine and convert it into a driving force. which makes the movement of vehicle possible. Transmission starts working as soon as you start the car and engage gears to move the car forward or backwards and is always hard at work. Transmission gears are not simply placed in the transmission and come alive on your instructions to perform the work of operating the vehicle, rather they are sitting in a pool of fluid called transmission fluid which helps to keep them lubricated and is ready when you need them for the operation of the vehicle. This transmission fluid keeps the gears of your vehicle cool by reducing the friction and help you to operate the trans