The engine oil viscosity is defined by ___________ ratings.
a) Automatic transmission fluid (ATF)
b) Society of automotive engineers (SAE)
c) Gross vehicle weight (GVW)
d) American petroleum institute (API)
The engine oil viscosity is defined by ___________ ratings.
a) Automatic transmission fluid (ATF)
b) Society of automotive engineers (SAE)
c) Gross vehicle weight (GVW)
d) American petroleum institute (API)
