Determining the length of time the oil should stay in the engine, is a little tricky. This is due to the fact that, it mostly depends on how the car is used, what conditions the vehicle is exposed to and the driving habits of the owner. We all know that these factors vary from person to person. Meaning, if your use the car in a certain way there are specific instructions as to how often you should drain the oil. Our goal is to be able to categorize and identify these.
There are two major reasons why oil must be drained periodically. Contaminants can increase in number. When this occurs, the oil’s ability to lubricate and cool the engine is significantly reduced. Chemical changes are also a problem. Oil contains certain additives. These give the capacity to protect form rusting and corrosion of metals until they become depleted and oxidized. For clarification purposes, oil itself does not wear out. However, the additives, which are incorporated in the compound that are responsible for protecting metal parts against oxidation and other causes of deterioration, do. New oil and a new filter will help your engine perform better and last longer when it is done in the correct intervals.
The American Petroleum Institute says that this change should be done at “regular intervals” and check with the recommendations given in your car’s service manual. Usually, there are two types: one for mileage which, in most cars is as around 3,000 miles; and the other one is for time, at around three months. When it’s summer time decrease the recommendation by 10% and by winter 20%. For example, in winter the oil must be changed around 2,400 miles. This is the computation for maximum oil-change intervals. It might be a bit costly and inconvenient for some, but you are assured that the car is in good condition when you need it to be.
If on the other hand, operating conditions are other than ideal, the change interval will be shortened. In fact under the worst driving conditions for automotive engines - such as what occurs during dust storms, prolonged idling, constant starts and stops, the oil change interval may have to as little as only 500 to 1000 miles (that is approx 800 to 1600 kilometers.)
When driving under harsh conditions, this can qualify as “Super Severe Service”. This is when adverse climatic conditions make it necessary for the recommended time intervals to be shortened. This is applicable to activities such as towing a trailer in a mountainous region under very hot weather. The main idea is, these suggestions should also be coupled with good judgment. After all, the owners are the best persons to determine how soon oil changes must be done because they are fully aware of how often and how hard their cars are drive.V:12