Motor Oil Motor oil is a very common type of automotive oil used . Vehicle manufacturers recommend that you replace motor oil every 3,000 to 5,000 miles. There are certain additives used that help prevents any breakdown and corrosion of parts. There are also different types of viscosity, which is the thickness of the oil. Small numbers indicate the oil is thinner, which makes it easier to flow. It's recommended that when changing out the oil you choose multi-grade oil so that it can keep the viscosity rating when the oil is at different temperatures. There are plenty of lube oil suppliers to choose from, so make sure you are choosing the right one for your vehicle. Gear Oil This oil is typically used in the manual transmission, and when high-temperature lubricant is needed. This type of oil has a smell that is noticeable so you can detect a leak. Transmission Fluid This type of fluid can help prevent many problems. It will help lubricate the parts in the transmission and helps co