lubricating system vs pressure feed

lubricating system and pressure feed both are nouns.

Word	Noun	Adjective	Verb	Adverb
lubricating system	Yes	No	No	No
pressure feed	Yes	No	No	No

As nouns, lubricating system and pressure feed are synonyms defined as:

lubricating system and pressure feed: mechanical system of lubricating internal combustion engines in which a pump forces oil into the engine bearings

Other synonyms of lubricating system include force-feed lubricating system, force feed, pressure-feed lubricating system.

lubricating system (noun)	pressure feed (noun)
mechanical system of lubricating internal combustion engines in which a pump forces oil into the engine bearings	mechanical system of lubricating internal combustion engines in which a pump forces oil into the engine bearings