3rd December 2019


What is the density of SAE 30 oil?

SAE 10W-40
Temp. [°C]Dyn. Viscosity [mPa.s]Density [g/cm³]

Beside this, what does SAE 30 stand for?

The numbers represent the viscosity of the oil and the W stands for WINTER. The long answer: The Society of Automotive Engineers (SAE) has established a numerical code system for grading motor oils according to their viscosity characteristics. This is why you would see something like this on the label: SAE 5W-30.

Is SAE 5w 30 the same as SAE 30?

The W means winter. So the first number such as 5 in 5w-30 means that it flows better when cold. 10w-30 would be a bit thicker while cold. However it is important to note that the 30 is the same across all three oils, meaning that they will all be the same viscosity once the engine is at full operating temperature.

What is HD SAE 30 oil?

A PREMIUM MONOGRADE OIL FOR WARM CLIMATES. Castrol® HD 30 and 40 are engineered to resist thermal breakdown, so you can drive confidently in warmer temperatures. They are formulated to protect your engine and provide maximum performance for passenger cars and light trucks.
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