At a defined temperature a liquid become semisolid and doesn't easily flow: this is the pour point. This is important to establish the temperature range in which this material can be used.
pour point helps to determine the least limit of flow and helps in transportation of oils.
The definition of pour point is the lowest temperature at which a liquid begins to turn into a solid, so much so that it can no longer flow.
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point of application of force is the spot where the force is being applied.
The "Pour Point" of engine oil is about -44ºF.
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The pour point is the lowest temperature at which the fuel will flow. Pour point depressant will allow fuel to be used at a lower temperature without problems. Fuel oil must be pumped before it is used and if the viscosity is too high the oil will not flow easily. Pour point depressant might also allow fuel oil to be stored at a lower temperature thus saving some energy that would normally be used to keep it above its pour point. The chemical names of fuel additives are often proprietary and kept a secret, however see the related links for a discussion of pour point depressants.
There is a difference between the point of application and the plane of application. The point of application is when the force is concentrated on a particular spot, and the plane of application is like an invisible wall where the forces don't concentrate on a particular spot, instead it puts force on every spot.
It varies with the oils viscosity.
At a defined temperature a lubricant become semisolid and doesn't easily flow: this is the pour point. This is important to establish the temperature range in which this lubricant can be used.
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