Which Motor Oil is Thicker: 5W30 or 5W20?

Learn the key differences between 5W30 and 5W20 motor oil and find out which is thicker for optimal engine protection.

9 views

5W30 motor oil is thicker than 5W20. The difference lies in the viscosity at higher temperatures. While both oils perform similarly at lower temperatures (indicated by the '5W'), 5W30 has a higher viscosity at operating temperatures, providing more lubrication and protection in warmer conditions.

FAQs & Answers

  1. What does the 'W' in motor oil grades mean? The 'W' stands for winter, indicating the oil's viscosity in low temperatures.
  2. Can I use 5W30 instead of 5W20? Yes, but always consult your vehicle’s manual before making changes to ensure compatibility.
  3. What is viscosity in motor oil? Viscosity measures a fluid's resistance to flow, which affects how well it lubricates your engine.
  4. Why is viscosity important for motor oil? Higher viscosity oils like 5W30 provide better protection at higher temperatures, while lower viscosity oils like 5W20 ensure good flow in cold starts.

Watch More

For more insights on motor oils and car maintenance, check out our other videos on the best oils for various climate conditions and a beginner's guide to engine care.

  1. Is 5w30 Thicker Than 5w20? Understanding Engine Oil Viscosity Discover the difference between 5w30 and 5w20 engine oils and their impact on vehicle performance.
  2. Understanding the Difference Between 0W-20 and 5W-30 Motor Oils Learn the key differences between 0W-20 and 5W-30 motor oils for optimal engine performance.