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Dynamic viscosity is a material property which describes the resistance of a fluid to shearing flows. It corresponds roughly to the intuitive notion of a fluid's 'thickness'. For instance, honey has a much higher viscosity than water. Viscosity is measured using a viscometer. Measured values span several orders of magnitude.
The fluid specification for Mercon-ULV (Ultra-Low Viscosity) was introduced on January 2, 2014. Mercon ULV is composed of a Group 3+ Base oil and additives needed for the proper operation of the 2017 and above Ford 10R80 and the GM 10L90 10-Speed rear wheel drive automatic transmission.
The fluid specification for DEXRON-ULV (ultra-low viscosity) was introduced on January 2, 2014. DEXRON-ULV is composed of a Group 3+ base oil and additives needed for the proper operation of the 2017 and above GM 10L90 and the Ford 10R80 10-Speed rear-wheel-drive automatic transmission.
Superfluidity is the characteristic property of a fluid with zero viscosity which therefore flows without any loss of kinetic energy. When stirred, a superfluid forms vortices that continue to rotate indefinitely. Superfluidity occurs in two isotopes of helium (helium-3 and helium-4) when they are liquefied by cooling to cryogenic temperatures.
Kerosene is a low-viscosity, clear liquid formed from hydrocarbons obtained from the fractional distillation of petroleum between 150 and 275 °C (300 and 525 °F), resulting in a mixture with a density of 0.78–0.81 g/cm 3. It is miscible with petroleum solvents but immiscible with water.
Zero viscosity (no resistance to shear stress) is observed only at very low temperatures in superfluids; otherwise, the second law of thermodynamics requires all fluids to have positive viscosity. [4] [5] A fluid that has zero viscosity (non-viscous) is called ideal or inviscid. For non-Newtonian fluid's viscosity, there are pseudoplastic ...