Sae 30 Oil Viscosity Chart

The actual viscosity grade of a lubricant is determined by the society of automotive engineers for example sae 15w40 for a multigrade oil and sae 40 for a monograde oil. Oils can be separated into multigrade oils and monograde oils. Youll see the ranges for cst compared to sae numbers.
sae 30 oil viscosity chart

Engine Oils Lubrication Engineers

What Weight Of Oil 20 Or 30 Rrrrrrr Bob Is The Oil Guy

Crude Oil Crude Oil Kinematic Viscosity

The table at the right sae viscosity chart high temp shows the equivalents for cst and sae viscosity numbers.

Sae 30 oil viscosity chart. Their initial specification defined five different numbered grades for motor oil 10 20 30 40 and 50. For instance an sae 80w gear lubricant may have the same viscosity as an sae 20w or sae 30 engine oil and sae 90 gear lubricant viscosity can be similar to that of an sae 40 or sae 50 engine oil. 10w refers to the low temperature viscosity winter 40 refers to the high temperature viscosity summer. Multigrade oils must fulfill two viscosity specifications their viscosity grade consists of two numbers eg.

Engine oil sae 0w 30 kinematic viscosity and density over temperature. The table at the right sae viscosity chart high temp shows the equivalents for cst and sae viscosity numbers. Sae established the grading system which includes a numerical code system. The viscosity grade of a lube oil is determined by the society of automotive engineers sae.

The sae wanted a system that reflected the suitability of an oil for use as an engine lubricant and was easy for the consumer to understand. Viscosity mm2s density gcm3 0 112410 125725 08941 10 49110 55320 08878 20 23939 27156. The higher the number the thicker is the oil. Viscosity chart for sae 30 oil latexman chemical 4 mar 11 1344 my crane technical paper 410 has a graph of viscosity of water and liquid petroleum products on page a 3.

For motor oil viscosity. Understanding the sae motor oil viscosity standard. An oil that is 92 cst will be nearly the same viscosity as an oil that is 93 cst yet one is an sae 20 and the other is an sae 30. Numbers you find on different oil cans such as sae 30 or sae 10w 30 are viscosity or weight numbers that indicate the thickness of the oil.

As earlier mentioned sae stands for society of automotive engineers. Youll see the ranges for cst compared to sae numbers. A gear lubricant and an engine oil having the same viscosity will have widely different sae viscosity grade designations as defined in the two viscosity classifications. The first number 15w refers to the viscosity grade at low temperatures w from winter whereas the second number 40 refers to the viscosity grade at high temperature.

An oil that is 92 cst will be nearly the same viscosity as an oil that is 93 cst yet one is an sae 20 and the other is an sae 30.