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Car oil

Car oil, or motor oil, is a vital part of internal combustion engines found in cars. It acts as a lubricant for moving parts, allowing all the pieces of the car engine to move smoothly and cleanly. Car oil also protects car engines from corroding, and helps keep engines cool. Without car oil to take care of the car engine, the machinery would, in very little time, fall into disrepair and the vehicle would fail to function properly.

There are many different grades of car oil and they are coded numerically based in the characteristics of their viscosities: 0, 5, 10, 15, 20, 25, 30, 40, 50, or 60. Numbers 0 to 25 include a "W" in the coding to indicate the car oil's ability to function well in low temperatures. For everyday use of motor vehicles in urban areas, a multiple-grade oil was created; one that functions well in the depth of cold winter and also in the heat of a blistering summer. The addition of a polymer in the car oil allows different viscosities of varying grades of oil to come together, creating an all-season oil.

After extended use of a vehicle, the car oil becomes dirty and less effective. If dirty oil is not replaced with clean, new car oil, the car engine is no longer be protected and may become damaged by bits of dirt and metal in the oil. The car engine will also be damaged by lack of sufficient lubrication, and by overheating as the car oil is no longer as effective in keeping the car engine cool.

Car owners are highly recommended to change their car oil once every six months or every 5,000 kilometres, as doing so will extend the life of their engine. What car owners may not realise, however, is how important it is to change the car oil filter as well. The car oil filter in a vehicle is responsible for removing solid refuse like dirt, metal particles, and carbon before the pieces can interfere with the intricate moving parts of the engine.

Failure to change out the car oil filter could result in the filter becoming plugged, preventing the oil from lubricating the engine. Many oil filters are built with a "back-up plan" to a plugged filter, called a bypass valve which goes into effect when the oil filter can no longer operate properly, but this valve allows unfiltered oil to pass through to the engine risking damage to the engine.

The work of changing the oil and oil filter in a car is not terribly difficult; car owners can certainly do this on their own with minimal instruction found in car manuals and online tutorials. However, in the fast pace of today's society, most people opt for a professional to handle the job and often book their routine oil changes months in advance.

If you need more information about car oil or changing your oil, visit an NRMA car servicing store for advice or to book in for a car service.

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