To prevent the engine from overheating.
Depends on what car which you fail to list.
Because... you shouldnt put your HW here its how you fail tests.
most likely it will be hot so put snow on it
I had that happen on '87 ford ranger. Tore it apart and found the thermostat was backwards. Also if its a "fail safe" thermostat it sticks wide open preventing overheating but also will take longer for your engine to warm up.
antifreeze keeps your car from overheating, it flows thru your radiator hose, without it your motor would blow
Take it to a mechanic. Have them check for leaks.
You should not drive the car. You should get it to a repair shop and have the brake fluid changed. You are looking at this the wrong way - YOU KNOW that the breaks have the wrong fluid and that they may/will fail. If this happens and you hit/kill someone then what you will have done is tantamount to murdering them! If you own a car it is your responsibility to ensure that it is safe to drive before you start it up - in this case you know it not safe to drive!
Legally yes, as long as its safe
If you fail to pay the mechanic for services then they can put a lien on your car and this has nothing to do with you making the monthly payments on time.
Take your thermostat out and put everything back together, run your car without a thermostat... If your car no longer overheats, replace your thermostat.
if the tube is radial too