Automobile Engineering in ME
The engine oil viscosity is defined by ___________ ratings.

Automatic transmission fluid (ATF)
Society of automotive engineers (SAE)
Gross vehicle weight (GVW)
American petroleum institute (API)

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Automobile Engineering in ME
The function of a radiator fan in the cooling system is that

It is turned by wind force as the vehicle moves forward, and its rotation drives the water pump
It blows air through the radiator when necessary
It cools the engine by blowing air onto the cylinder block
It draws heat out of the engine compartment

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