Assertion: lubricant's additive | /r/AtLocation | a base oil
Facets:
value: to improve certain properties
type: PURPOSE
value: in formulations
type: OTHER
Source sentences:
text: Unless additive analysis is carried out it is usually difficult to know the identity of the additives added to a base oil in formulations that have been developed.
text: Additives are substances added to the base oil to improve certain properties or to add an entirely new ability.