Engine oils can be classified into two categories:

• Conventional mineral oils and;
• Synthetic oils

The primary function of motor oil is to provide lubrication between moving metal parts in the engine. The friction caused by these parts when they move together creates high levels of heat that cause damage unless a lubricant is introduced to the mechanism. A lubricant will smooth the surfaces and enable the parts to move freely against one another with reduced friction and wear. This is a function that mineral motor oil can perform quite well but a synthetic can perform far better.

Synthetic oils are manufactured specifically to stand up to the severe conditions under which mineral oils might falter. They are designed to possess viscosity characteristics superior to those of mineral oils. The resulting lubricants have a molecular structure that is tailored to meet and often exceed manufacturers' criteria for high-performance engines.

They may cost a little more because they are more expensive to produce but they’ll save you money in the long run.