5W-20 Synthetic Motor Oil

In recent years, auto manufacturers have been trending towards building engines that use lighter and lighter weight oils in order to reduce friction and increase fuel economy with most vehicle manufacturers moving to 5w-20 or 5w-30 weight synthetic and synthetic blend oils.

Why is this?

• Valve Train - Being lighter, the oil flows more quickly to the camshaft and valves to prevent friction at startup.
• Piston & Cylinder - Lots of friction occurs between the pistons and the cylinder walls, some of which is reduced by advanced synthetic oils.
• Oil Pump - It is more difficult to pump thicker oils through the oil pump, and low viscosity oils reduce some of these losses.
• Crankshaft - Friction at the connection between the rods and the crankshaft is constant and important - lower viscosity oils reduce the amount of friction in this location.

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