lubricating oil

English

Noun

lubricating oil (plural lubricating oils)

1. An oil for lubrication of engines and other components.
   • 1960 June, “Talking of Trains: New B.R. research laboratory”, in Trains Illustrated, page 329:

     Diesel maintenance schedules are benefiting from work done on the magnificent Hilger & Watts electronic spectrograph for oil analysis, which detects minute quantities of metals in samples of used lubricating oil; [...].

Related terms

• engine oil
• lubricant
• motor oil

References

• “lubricating oil”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.