The key difference between cloud point and pour point is that the cloud point refers to the temperature at which there is a presence of a wax cloud in the fuel whereas the pour point is the lowest temperature below which the fuel loses its flow characteristics.
Cloud point and pour point are important physical properties of any liquid fuel. Cloud point, as the name suggests is the temperature at which a cloud of wax crystals first appear in a liquid fuel when we cool it under special testing conditions. The cloud point of any petroleum product is an indicator of how well the fuel will perform under cold weather conditions. Pour point is just the opposite of cloud point as it refers to the lowest temperature at which we can observe the movement of oil and also we can pump the fuel easily. As such, there is only a slight difference in these two temperatures on the temperature scale, but the difference between cloud point and pour point is significant in the use of any fuel.
