Is a synthetic oil better than a mineral oil?

The origin of the base oil is not indicative of lubricant quality The quality of the compounds is determined by laboratory and engine tests during the design phase. It is true that mineral base oils have a lower viscosity index (thermal degradation), are more unsaturated (oxidation and deposits), and have more sulfur (emissions) than synthetic base oils.

Related questions:

• Difference between a synthetic lubricant and a mineral lubricant
• Can you change from synthetic to mineral oil?
• Is it worth using a synthetic oil instead of a mineral oil?