Why Does My Vehicle Need an Oil Change?

Your vehicle's engine is a complex piece of engineering, with numerous metal parts that move very quickly against each other. Engine oil plays a vital role as a lubricant, keeping these metal parts from being damaged by friction. This makes everything move smoothly in the engine. However, oil does not last forever. As time goes by, it will begin to degrade. It may also become contaminated with tiny pieces of metal or rubber. If you go too long without changing oil, the engine will start to suffer. Since the lubrication will be insufficient, your engine will begin to experience excessive wear. Continue driving with old oil and your engine may be badly damaged.

What Is Semi-Synthetic Oil?

Semi-synthetic oil is a blend of conventional and synthetic oils. Conventional oil is refined mineral oil that doesn't cost as much as other types, but it needs to be changed around every 3,000 miles. Synthetic oil is much better than conventional oil; it keeps your engine better lubricated, helps keep the engine cleaner, and lasts much longer -- you can usually go 7,500 miles to 10,000 miles between oil changes with synthetic oil. Semi-synthetic oil blends these two types of oil. It gives you some of the benefits of full synthetic oil, but at a lower price.