Why Synthetic


Synthetic motor oils can provide a variety of benefits that help keep your engine running at optimal performance for years to come.

To understand synthetic motor oils, let’s look first at the origins of all motor oils.

Conventional oils come from crude oil that is pumped from the ground. Crude oil is made up of a complex mixture of molecules that form chains and rings of different sizes and shapes. Long chains of carbon atoms produce a thick, viscous fluid that flows slowly. Shorter chains produce fluid that flows more readily.

In an oil refinery, crude oil is separated into various fractions. These become the basis for lubricating oils and fuels. Thick tangled masses of carbon chains become asphaltic materials used in roofing tar and road work. Very short chains and ring compounds of carbon are volatile and can be refined to produce gasoline and other products.

While petroleum refining is an advanced science, small amounts of contaminants, such as sulfur and reactive hydrocarbons, cannot be completely removed from petroleum, and may end up in motor oil base stocks.

All motor oils are made up of base oils and additives. In general, fully synthetic motor oils contain non-conventional, high-performance fluids. Synthetic blends usually use some non-conventional, high-performance fluids in combination with conventional oil.

To meet the demanding requirements of today's specifications (and our customers' expectations), Mobil 1® uses high-performance fluids, including polyalphaolefins (PAOs), along with a proprietary system of additives. Each Mobil 1 viscosity grade uses a unique combination of synthetic fluids and selected additives in order to tailor the viscosity grade to its specific application.


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