Gasoline, water from the exhaust, lubricant from the rear differential.
The transmission will not work without fluid.
about 25%
if car is leaking fluid , it has a leak a leak and steaming indicates it is engine coolant and the engine is over heating find the leak and fix it before your trash your engine
Oil
One of the most important fluids in your car is the transmission fluid. There is no way around getting your car to run properly without transmission fluid. This fluid is what makes your transmission turn and the gears shift. If you have a leak and there is little of no fluid in your transmission, then your car will not move. There are some signs you can look for if you think your car is low on fluid.If you have a large piece of cardboard, you can place it under the car. This will let you know if there is any fluid leaking form under the car. Leave the board under the car for at least a day in order to see if anything is leaking. Take the board out from under the car and look to see if there is any fluid on the board. If there is, you need to examine to see what kind of fluid it is. It if it red, then it is most likely transmission fluid.When you discover there is a transmission fluid leak, you will need to have it looked at by a mechanic immediately. Some leaks are not detectable until the mechanic looks underneath the car. You could also have an internal leak that is not showing up under the car. The fluid could be going to your oil reserve or to another part of the car. Sometimes when you have your transmission fluid changed, the bolt may not be tight enough and some fluid will leak around it. All you have to do is take it back to the mechanic and get them to tighten the bolt. If the fluid leak is large, you will either need to get the gasket changed or find out where the fluid is going. Do not run a car longer than necessary with no transmission fluid. This will damage the transmission more than if you would just get the fluid leak fixed.
Transmission fluid can leak from many places. It could leak from the actual transmission itself, or any of the tubing that goes from the transmission to other parts of the car.
There is a good method to prevent leak: to use good filtrationMagnetic Steer Safe Filter for Power steering and automatic gear boxeshttp://www.at-hidraulic.eu/magnetic_steer_safe_filter_for_power_steering_and_automatic_gear_boxes/why does it leak in the back of the car when the power steering fluid is put in the front of the car??
the o ring can be bad or you might have a crack in the line would be my first 2 guesses
I hope you take it to a garage and have the brakes inspected. Might be a brake fluid leak.
you shouldn't have to keep putting PS fluid in your car. There is probably a leak that should be repaired.
First make sure it actually is a problem with the fluid by looking for things such as a puddle of fluid coming from your car, then assess the seriousness of the leak by how much came out, if minor use stop-leak and pour it directly down the tube.
Oil probably.