Oil Change is the vital process for the engine life of any kind of vehicle. During this practice, old and used oil is removed from the vehicle and replaced with new and clean oil. This oil is usually used for lubricating against gears’ friction and breaks down over time. When it breaks down it can no longer accomplish its required job effectively so it must be changed within the time otherwise the friction of the gears can damage the engine. The time you need before changing it again completely depends upon many factors including the type of your car, your driving habits and most importantly the brand of the oil you are using.