Assertion: motor oil's viscosity | /r/HasProperty | important
Facets:
value: at low temperatures for pumpability
type: PURPOSE
value: very
type: DEGREE
Source sentences:
text: the “specific” viscosity selected for any given engine, is very important.
text: This is the viscosity of the oil, an important figure that we will also discuss further down.
text: Viscosity plays a key role in preventing aircraft engine wear and is also important at low temperatures for pumpability.