Nissan owners want their cars to have a happy and healthy life. One of the most critical aspects of Nissan care is getting the right oil for your vehicle. While you might think that car oil is a uniform product, there is actually a considerable amount of variety among different kinds of oil. Car oils typically break down into a few categories: full synthetic, partial synthetic, conventional, and high mileage. Each type of oil has a distinct purpose. High mileage oil is made for Nissan vehicles that have reached 75,000 miles, while synthetic and synthetic blend oils are quite universal and versatile.