WHAT IS A CAR TRANSMISSION?
The term transmission often only refers to the gearbox that uses gears and gear trains to provide speed and torque conversions from a rotating power source to another device. A transmission has multiple gear ratios with the ability to switch between them as speed varies. This switching may be done manually by the driver or automatically. Directional (forward and reverse) control may also be provided. Single-ratio transmissions also exist, which simply change the speed and torque (and sometimes direction) of motor output.
WHAT IS A MANUAL TRANSMISSION FLUID?
In a manual transmission car, drivers are responsible for shifting gears using the clutch and gas pedals. Shifting is an important part of driving. As you increase your car speed, the number of your engine's rotations per minute (RPMs) also increases. You've probably noticed that there is a gauge on the dashboard called the "tachometer." This gauge shows the RPMs for your engine and has a scary-looking red area, which is fittingly called the "red line." In order to protect your engine, you need to change gears before the tachometer needle reaches the red line area.
WHAT IS AN AUTOMATIC TRANSMISSION FLUID?
Transmission fluid is a slippery liquid that acts as a lubricant for all of the moving parts inside your transmission. In an automatic transmission, this fluid also serves as a coolant and a viscous fluid that transmits power from the engine to the transmission.
WHAT IS A TRANSMISSION AXLE FLUID?
Transaxle fluid is a type of lubricant which keeps the axle of a front-wheel-drive vehicle lubricated and functioning properly. The axle is an auto part used to combine in one housing the transmission with the differential, thus making the car shift gears automatically.