No. Brake fluid is not a petroleum product. Power steering fluid is. Petroleum product will swell and ruin rubber part's brake system is full of rubber parts. You will destroy your brake system using power steering fluid.
none it is petroleum based
The seals in a brake system will dissolve if they get any petroleum product on them. the system will not last long, and could fail at any time.
Typically brake fluid is a petroleum base, so one drop won't typically hurt them but if emersed it will kill them.
If you have anything other than brake fluid in the line, then the whole system has to be flushed. Use fresh brake fluid and you can blow the system with air pressure then bleed with the d.o.t. specified fluid for your model.
Because oils damage rubber seals and hoses in the braking system, brake fluids are not petroleum-based. Most brake fluids used today are glycol-ether based, but mineral oil (Citroën liquide hydraulique minéral (LHM) and silicone (DOT 5) based fluids are also available.
NO. Brake fluid is hydroscopic, meaning it adsorbs water. It is also petroleum based. If yours is low you either have a leak somewhere, it is time for a brake job because friction material is worn down letting pistons or wheel cylinders travel farther out of their bores, or it was never the right level to start with.
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.
petroleum based fluid for automatic and powershift transmissions
It is a castor oil based brake fluid. Do not mix with systems requiring Dot 3 or Dot 4 which are glycol based.
DOT 5
If the synthetic fluid is silicone based, yes. If it is a dot 3or 4 type, no.