Demystifying Oil Weights: What Do They Really Mean?

TLDROil weights represent viscosity grade, not weight. Thicker oils have higher viscosity. Multi-grade oils have different viscosity grades at different temperatures. Thinner oils improve fuel efficiency. Thicker oils protect high-performance engines. Always use the oil recommended in your owner's manual.

Key insights

🛢️Oil weights represent viscosity grade, not weight

🧪Thicker oils have higher viscosity

🌡️Multi-grade oils have different viscosity grades at different temperatures

🚗Thinner oils improve fuel efficiency

💪Thicker oils protect high-performance engines

Q&A

Should I use a thinner oil for better fuel efficiency?

Yes, thinner oils can improve fuel efficiency. However, always use the oil recommended in your owner's manual.

Can thicker oils provide better protection for high-performance engines?

Yes, thicker oils with higher viscosity grades can provide better protection for high-performance engines. Consult your owner's manual for the recommended oil.

What happens if I use oil with a different viscosity grade than recommended?

Using oil with a different viscosity grade than recommended can affect engine performance and durability. Always use the oil recommended in your owner's manual.

Why do oil weights keep getting lower?

Lower oil weights are used to improve engine efficiency. Thinner oils reduce friction and can increase fuel economy. However, always follow the manufacturer's recommendations for your specific engine.

How do I choose the right oil for my car?

Always consult your owner's manual for the recommended oil viscosity grade. Using the wrong oil can lead to engine damage and void warranties.

Timestamped Summary

00:00Oil weights represent viscosity grade, not weight. Thicker oils have higher viscosity.

01:12Multi-grade oils have different viscosity grades at different temperatures.

03:49Thinner oils improve fuel efficiency.

06:20Thicker oils protect high-performance engines.

08:21Always use the oil recommended in your owner's manual.