Definition

1. Noun:
   • Lubricating oil: A substance, typically a viscous liquid, used to reduce friction, heat, and wear between mechanical components in contact with each other. It is a general term for lubricants used in engines and machinery.
   • Engine oil: Specifically refers to the oil used for lubricating internal combustion engines in vehicles like cars and motorcycles.

Usage Examples

• Noun:
  • Xe máy cần thay dầu nhớt định kỳ. (The motorbike needs its engine oil changed regularly.)
  • Công nhân đổ dầu nhớt vào các khớp bản lề. (The worker poured lubricating oil into the hinge joints.)
  • Cửa hàng bán nhiều loại dầu nhớt cho ô tô. (The shop sells many types of motor oil for cars.)

Advanced Usage

• "dầu nhớt động cơ": A more specific term for "engine oil" or "motor oil".

  • Dầu nhớt động cơ chất lượng cao giúp bảo vệ động cơ tốt hơn. (High-quality engine oil helps protect the engine better.)

• "thay dầu nhớt": The common phrase for "to change the oil".

  • Đã đến lúc phải thay dầu nhớt cho xe rồi. (It's time to change the car's oil.)

Variants and Related Words

• Dầu máy: Another common term for "engine oil" or "motor oil".
• Dầu bôi trơn: A more formal/technical term for "lubricant" or "lubricating oil".
• Nhớt: A common colloquial/shortened form for "dầu nhớt", especially in Southern Vietnamese dialects.
  • Đi đổ nhớt cho xe. (Go get the vehicle's oil changed.)

Synonyms

• Chất bôi trơn: Lubricant.
• Dầu động cơ: Engine oil, motor oil.

Related Phrases

• Hết dầu nhớt: To be out of oil/to have no oil left.

  • Động cơ có thể bị hỏng nếu hết dầu nhớt. (The engine can break down if it runs out of oil.)

• Báo động dầu nhớt: Oil warning light.

  • Đèn báo động dầu nhớt sáng lên trên bảng đồng hồ. (The oil warning light came on the dashboard.)