Definition

Noun: A device designed to remove contaminants and impurities from engine oil before it circulates through an internal combustion engine. Its primary function is to protect the engine by trapping particles of dirt, metal, and other debris that could cause wear and damage.

Usage

An oil filter is a critical component of a vehicle's lubrication system. It is typically replaced during routine oil changes. - You should change the oil filter every time you change your engine oil. - A clogged oil filter can reduce oil flow and harm the engine.

Advanced Usage

• "spin-on oil filter": A common type of oil filter that screws directly onto the engine block.
  • Most modern cars use a convenient spin-on oil filter.
• "oil filter housing": The part of the engine where the oil filter is mounted or contained.
  • He cleaned the oil filter housing before installing the new filter.

Variants and Related Words

• Filter (n): A general device for removing solid particles from a liquid or gas.
  • The cabin air filter improves the air quality inside the car.
• Oil (n): A viscous liquid used for lubrication.
  • The engine requires synthetic oil.

Synonyms

• Lube filter: A less common synonym emphasizing its role in the lubrication ("lube") system.

Related Phrases

• Oil filter wrench: A specialized tool used to remove a tight oil filter.
  • I needed an oil filter wrench to loosen the old filter.

Noun

1. a filter that removes impurities from the oil used to lubricate an internal-combustion engine