what is 15w-40grade oil. means what 15,W,40 stands for?

Question Posted / anil

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what is 15w-40grade oil. means what 15,W,40 stands for?..

Answer / saravanan

This is a multigrade oil

w - mean for cold season or winter season operation
15 - thinness at lower temperature
40 - thckness at higher temperature

Is This Answer Correct ?

38 Yes

1 No

what is 15w-40grade oil. means what 15,W,40 stands for?..

Answer / rakesh sharma

it is multigrade oil.
W stands for winter whereas value 15 and 40 stands for the
value of viscosity at low and high ambient temperatures.

Is This Answer Correct ?

9 Yes

3 No

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