Motor oil can be divided into mineral oil and synthetic oil.
Synthetic motor oil is divided into two types: fully synthetic and semi-synthetic.
The biggest difference between mineral oil and synthetic motor oil is that synthetic oils use a wider temperature, longer service life and higher cost. The same oil film requirements, synthetic oil can be achieved with lower viscosity, and mineral oil needs to be used. This requirement can be achieved with respect to the richer viscosity of the synthetic oil.
In the same working environment, synthetic oil is much more expensive because it is used much longer than mineral oil, but it is not much higher than mineral oil after the oil change.