Wider temperature used synthetic

Currently on the market of oil because of different base oils can be simply divided into two kinds of mineral oil and synthetic oil (vegetable oil production because it is not rare count). Synthetic oils are divided into: whole and into and semi-synthesis. Fully synthetic motor oil is the highest level.
Biggest difference between the two lies: the temperature of a wider use of synthetic oil,  oil expeller  period of use, as well as higher costs; same film requirements, low viscosity synthetic oil can be used to reach, and mineral oil to synthetic oil required with respect to thicker viscosity can achieve such a requirement. In the same working environment,  oil refinery  use of synthetic oil is much longer period than mineral oils, so the cost is higher, but after comparing oil changes are not much higher than mineral oil.