Conventional Oil

The original lubricant for internal combustion engines, conventional oil has been around for nearly 100 years since the beginning. At that time, engine oils were not standardized nor regulated until WWII when oil technology was given a major boost. Today's conventional oil continues to require petroleum but also contains a healthy portion of additives to improve viscosity and resistance of thermal breakdown. Vehicles running on conventional oil need to change it every 3,000 to 5,000 miles. 

Synthetic Blend Oil

Containing petroleum but less than conventional oil while using synthetic oil base stock to produce, this type of oil is also called semi-synthetic. This reflects the breakdown of raw materials used for production and also the balance of price and performance that this oil delivers. The slight premium cost above conventional is often a profitable investment toward enhanced engine lubrication and extended change interval of 5,000 to 7,5000 miles.

Full-Synthetic Oil

Entirely manmade via chemical engineering, this oil is the most advanced engine oil technology available on the commercial market today. It does not contain any crude petroleum and is entirely synthetic base stock oil with additives that help it last as long as possible - 7,5000 to 10,000 miles between changes.