The Society of Automotive Engineers (SAE) has established a numerical code system for grading motor oils according to their viscosity characteristics. SAE viscosity gradings include the following, from low to high viscosity: 0, 5, 10, 15, 20, 25, 30, 40, 50 or 60. The numbers 0, 5, 10, 15 and 25 are suffixed with the letter W, designating their "winter" (not "weight") or cold-start viscosity, at lower temperature.
SAE 40 has a higher viscosity.
SAE 40 has a higher viscosity.
SAE 80W-90 GL-5 gear lubricant, Full time 4x4 is SAE 10W30 or 40 engine oil.
The "W" after the first set of numbers stands for winter. The lower the number, the lower the actual air temperature can be and still effectivly lubricate the engine. The second number is the oils viscosity. The higher this number is, the higher the air temperature can be and the oil can withstand without breaking down prematurely.
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
What is fulform of SAE 40 oil.SAE - Society of Automotive Engineers 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 30 motor oil if the temperature is between 30 & 75°F.Colder use SAE 10 oil.Warmer use SAE 40 oil.
no
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)
No. Depending on the mower, the correct oil will be SAE 30 or SAE 40. Make sure it is NON-DETERGENT