Note that machine operating temperatures - and lubricant temperatures - does not change significantly with different ambient temperatures. In most cases operating temperatures of engines are above the temperatures in the table above.
The table below indicates recommended gear oil viscosity vs. outside (start up) temperatures.
Note that the tables above indicates average data. For specific information - check manufacturing data.
Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more.
Viscosities of products and chemical species at varying conditions.
Convert between dynamic or absolute viscosity units - Poiseuille, Poise, centPoise and more.
API expresses the gravity or density of liquid petroleum products. Online API to Specific Gravity calculator.
Friction and efficiency in bearings and roller chains.
ISO-VG viscosity grades for industrial lubricants.
Viscosities and densities of ISO - and equivalent SAE grade oils.
Absolute (dynamic) viscosity values for some common fluids.
Kinematic viscosities of some common liquids like motor oil, diesel fuel, peanut oil and many more.
Dynamic viscosities for motor oils SAE 10 to 50 for temperatures ranging 0-100 oC.
Viscosities of fuel oils vs. temperature.
Pressure drop in oil pipes - viscosities ranging 100 - 600 Saybolt Universal Seconds.
Convert between commonly used oil viscosity units.
Viscosities and densities of SAE Grade oils.
Vicosity is a fluid's resistance to flow and can be valued as dynamic (absolute) or kinematic.
Convert between viscosity units like Centiposes, milliPascal, CentiStokes and SSU.
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