for further details check out: http://www.performanceoiltechnology.com/saeviscosityclassificationsandmanf.requirements.htm
Manufacturers mix various oils to make an 'SAE 40' oil product. Such a mixture will not have a molecular weight.
Sae-20w
SAE stands for Society of Automotive Engineers. Sae ratings pertain to the oils Viscosity. Viscosity is the flowability (resistance to flow) at a particular temperature.
SAE is an acronym for the "Society of Automotive Engineers" and when used in conjunction with tool grade or measurement (not oil), is a standardized unit of non-metric measurement. Simply put, in measurements it means "Non-Metric". The name "SAE" used to grade motor oil has a totally different meaning, although instituted by the same society.
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SAE 40 has a higher viscosity.
SAE 40 has a higher viscosity.
SAE-40 oil refers to oil that meets the Society of Automotive Engineers (SAE) specification for viscosity grade 40. The "SAE" indicates the standards set by the organization, while the "40" denotes the oil's viscosity at high temperatures. This type of oil is typically used in engines requiring higher viscosity for optimal performance, especially in warmer climates.
Manufacturers mix various oils to make an 'SAE 40' oil product. Such a mixture will not have a molecular weight.
SAE 30 motor oil if the temperature is between 30 & 75°F.Colder use SAE 10 oil.Warmer use SAE 40 oil.
No ( according to the owners manual that came with my Ariens lawnmower ( with a Kohler engine ) SAE 30 if above 40* Fahrenheit SAE 10W-30 if below 40* Fahrenheit
sae document j300 defines the highest single grade as 60. this is in reference to viscosity and not the quality of the oil
no
10 40 sae
Sae 10w-40
10/40 sae
Type: SAE 10W-30, SAE 10W-40, SAE 20W-40 or SAE 20W-50 Recommended engine oil grade: API service SG type or higher, JASO standard MA Engine oil quantity: Periodic oil change: 1.00 L (1.06 US qt) (0.88 Imp.qt)