When it comes to motor oil, there are only 2 to choose from. Real and synthetic. Some may say that synthetic is better for your engine than real but is it really?
To start off, here's a brief overview of what synthetic oil actually consists of. Synthetic oil is a lubricant that consists of chemicals that used modified petroleum components. It uses these types of components rather than whole crude oil like regular oil does.
Some of the benefits of using synthetic oil include:
Better viscosity index, better chemical and shear stability, decreased evaporative loss, resistance to oxidation and oil sludge issues. Something else that's important to note is that synthetic oil can result in improved fuel economy, which is a desirable benefit in todays climate where people are always trying to get better MPG's. Another great benefit of synthetic oil is that it can result in increased horsepower and torque due to less initial drag on the engine. Obviously one of the biggest claims that synthetic oil can benefit your car is that it can possibly result in a longer engine life.
This video gets into the scientific details of synthetic oil and explores if it's better for your engine than traditional motor oil.