There’s a reason auto manufacturers emphasize the importance of regular oil changes, and it’s not simply because they want you to comply with their warranty. Routine maintenance, especially oil changes, is recommended because it’s a great way to promote your vehicle’s longevity. Oil changes can help a vehicle run efficiently and smoothly when performed regularly.
Of course, even the best-maintained vehicle will eventually show some age. Whether you change your oil or pay someone to change it for you, if your vehicle is getting on in years, you may have wondered if it requires any modifications at maintenance time. In the case of oil lubrication, you may be right.
What is high mileage oil?
As engines age, certain parts, such as the o-rings, seals, and gaskets, begin to degrade. Once these components start to deteriorate, they’re less able to fulfill their various functions, one of which is to keep oil sealed inside the engine. As might be expected, one of the classic signs that a vehicle is beginning to age is finding a small puddle of oil on the garage floor.
As Machinery Lubrication points out, high mileage oil is designed to combat some issues that arise as a vehicle ages. High mileage oils contain special additives and seal conditioners that prompt key components such as an engine’s gaskets, seals, and o-rings to expand. After these components spread out, their functioning is restored, and once again, the seals, gaskets, and o-rings prevent oil from leaking out of the engine.