There is no difference that I am aware of. These terms seem to be used interchangably.
hydraulic fluid is used internally only,slide way lubricants are external
they are both hydraulic fluids tranny has a dye but depends on manufacturer specs
Internally, they're pretty much the same. The difference is the operation expected of it - a hydraulic pump converts mechanical energy to fluid energy, whereas a hydraulic motor converts hydraulic energy to mechanical energy.
A hydraulic pump will be powered by a mechanical source, such as a combustion engine or electric motor. The input shaft actuates a mechanism which pushes fluid through it, thus converting the mechanical energy into fluid energy. A hydraulic motor is powered by the flow of hydraulic fluid through it, and will use this fluid energy to power a mechanical device - typically, a shaft, thus converting fluid energy to mechanical energy.
A hydraulic pump uses an external mechanical force to pressurize the hydraulic fluid. A hydraulic motor uses the pressurized hydraulic fluid to apply a mechanical force an external machine. See the difference between a pump and a motor.
Any pressure difference is irrelevant. The distinction is in the operating fluid. In pneumatic systems, it's a gas. In hydraulic systems, it's a liquid.
How much hydraulic fluid with how much gasoline makes a big difference and was some hydraulic oil mixed into the gas tank or was some gasoline mixed with the hydraulic tank. More info please.
Mechanically, they're very similar - in some instances, mostly the same. The difference is in their function - a pump will convert mechanical energy to fluid energy, whereas a motor will convert fluid energy to mechanical energy.
A screw drive is a screw mechanism that moves and hydraulics is a fluid pressure system
Hydraulic fluid and hydraulic oil are one in the same.
Permeability is a measure of how well a porous media transmits a fluid. It has nothing to do with the fluid itself. It is measure in (length)2. The Hydraulic Conductivity is a measure of how easily water moves through the porous media. It depends on the permeability of the matrix, but also is a function of the fluid. It is a measure of (length)/(time)