A car requires periodic oil changes, which replace dirty oil with clean oil---generally, after a recommended specific number of months or miles. Oil lubricate the parts of a car engine's internal combustion system, as well as clean the engine, inhibit corrosion and improve sealing and cooling in the engine by distributing heat away from moving parts.
When you take your car in for an oil change, you might hear it referred to as an "oil, lube and filter change." The "oil" represents how the technician will drain the old oil from your car and replace it with new oil. The "lube" comes into play with the lubrication of the chassis. The "filter" refers to the old oil filter, which the technician also replaces with a new one. At different stations, the technician might also check your power steering, transmission and windshield wiper fluid as well as the antifreeze.
Oil changes vary in the type of oil used in a car. You can choose between regular and synthetic oils. According to the website Car Bibles, which ranks types of oil from good to better to best, mineral oil offers basic engine protection but requires more frequent changes. According to Car Bibles, semi-synthetic works three times better than mineral oil at reducing engine wear and tear. Synthetic makes the best choice, however, since it offers the best savings for fuel economy as well as enhancing the engine's power and performance.
Another aspect of your oil change might involve a head gasket replacement. This part, located between the cylinders and the engine block, helps prevent oil and as other fluids from leaking. You must replace a blown or bad gasket so it does not lead to other power and performance problems with the car. The technician who performs your change will also check the O-rings, which prevent oil leaks. If a technician notices a leak, he will recommend replacing the oil rings.
