Assertion: engine's oil | /r/Causes | the strength of the oil film
Facets:
Source sentences:
text: This causes the oil to possess less-effective lubricating properties and causes the strength of the oil film to be reduced, which increases the amount of wear on the cylinder liner and the bearings—this arises from the fact that the oil film is crucial for reducing the friction between moving components by providing a barrier, and the thinning of the oil causes the effectiveness of the barrier to be reduced, thus increasing the amount of wear on the system.