What are the benefits of using 0W-20 synthetic engine oil?

More and more cars leave the factory filled with 0W-20 synthetic engine oil, this is in order to meet ever tightening emissions and fuel consumption regulations. In a world that is increasingly aware of pollution and dwindling natural resources, this trend will soon become the norm.

How does 0W-20 synthetic engine oil benefit fuel consumption?

Because the motor oil is a lower viscosity there are fewer losses,