Keyless entry is a security device available on some new cars or as an add-on accessory on older models. It allows you to open the doors of your car from a remote location with the press of a button.

Perhaps the most important element in keeping your car's engine running smoothly is motor oil. Virtually all moving parts of an engine depend upon a thin layer of lubricant to keep metal parts from grinding together.

Your car's suspension system should give you a smooth ride and help ensure that the wheels grip the road while you're turning, speeding up, and or slowing down. Most of today's suspension systems are made up of a combination of springs and shock absorbers.