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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.
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∙ 14y ago
The numbers in a lubricant's SAE (Society of Automotive Engineers) rating represent its viscosity at different temperatures. In the case of a SAE 20W-40 oil, the number before the 'W' (20) indicates its viscosity in colder temperatures, while the number after the 'W' (40) represents its viscosity at operating temperatures.
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Which oil has higher viscosity SAE 20 or SAE 40?
SAE 40 has a higher viscosity.
Which of oil has a higher viscosity. SAE 20 or SAE 40?
SAE 40 has a higher viscosity.
Meaning of SAE in sae 40 lubricant?
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.
What is the transfer case fluid type for a 1979 Chevy suburban?
SAE 80W-90 GL-5 gear lubricant, Full time 4x4 is SAE 10W30 or 40 engine oil.
What kind of motor oil should you use for a 1987 dodge raider?
From the Import Service Manual - 1987 Ram Raider: 2.6L 4cyl engine Total oil capacity: 5 liters (5 1/2 quarts) 32 -120 °F SAE 20W- 20 40 50 -10 - 120 °F SAE 10W- 30 40 50 -20 - 60 °F SAE 5W- *20 30 40 *SAE 5W-20 Not recommended for sustained high speed vehicle operation.
What is the meaning of these numbers 40 30 20?
No particular meaning.
What type of oil does a Honda s65 require?
SAE 30 weight, non-detergent, is the standard for summer riding. SAE 20 if the temp is below 40 degrees. Change it every 200 miles.
What is the fulform of SAE 40 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
What is molecular weight of SAE 40 oil?
Manufacturers mix various oils to make an 'SAE 40' oil product. Such a mixture will not have a molecular weight.
Can you use SAE 5w-30 snowblower oil in a lawnmower that uses SAE 30 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
What type of oil do you use for a 1998 Mitsubishi Eclipse?
it depends. non-turbo = SAE 5W-30 for ambient temp ranges minus 20 to 100 F. turbo = SAE 5W-30 for ambient temp ranges minus 20 to 60 F SAE 10W-30 for ambient temp ranges minus 10 to 120 F SAE 20W-40 for ambient temp ranges minus 32 to 120 F
Is 10w x 40 oil equivalent to SAE-30?
no
