none is used to prepare it, it is antifreeze!
Glycol
Only brake fluid can be used for brake fluid. Brake fluid is a glycol-based liquid - it's closer to antifreeze than to oil, but don't use antifreeze in it either. Only brake fluid.
Glycol
No, the fluid cannot absorb water but you can get water in your brake system and that would be bad. --Most brake fluids used today are glycol-ether based. Glycol-ether brake fluids are hygroscopic (water loving), which means they absorb moisture from the atmosphere under normal humidity levels. Racing brake fluid may be synthetic and not have this problem, but in the everyday world, brake fluid does absorb water.
It is a castor oil based brake fluid. Do not mix with systems requiring Dot 3 or Dot 4 which are glycol based.
Most Brake fluid is made of Glycol-ether. (Dot 3 being the most common). But mineral spirits is used in rare dot 5. Brake fluid is not considered hazardous until it is contaminated by other properties found in a brake system such as dust or metal.
Are you trying to make your own deicing fluid? Look in the phone book for chemical supply companies; Hexion Specialty Chemicals is who I always bought stuff from, and they'll bring you a drum of ethylene glycol. Note the quantity: they don't want to talk to you for less than 55 gallons of anything. Then again, if you're deicing aircraft you'll use that much. You can get a liter of it from Sigma-Aldrich for $77.80. You can get a gallon of deicing fluid for twenty dollars, and you can get a gallon of automotive antifreeze for around $10. Unless you are planning to make a huge amount of whatever it is you're making, or you need absolutely pure ethylene glycol for research purposes, buying pure glycol is economically foolish.
Coolant - 50-70 percents ethylene-glycol based antifreeze and waterPower steering fluid - Dexron 2 or 3 automatic transmission fluid
0.976
I would say any fluid could act as a coolant. Brake fluid DOT 3, 4 and 5.1 is a polyethylene glycol based fluid. DOT 5 is a silicone based fluid. DOT 3, 4 and 5.1 will absorb water, reduce its boiling point and degrade its performance.
Antifreeze (also called ethylene glycol) is used in radiators (not windshield washer fluid) because it raises the boiling point and lowers the freezing point of water.
I have a 2000 Dodge Neon myself. The owner's manual specifies ethylene glycol antifreeze. The capacity is 6.0 quarts (6.5 if you count the reservoir where you add the fluid).