It’s oil good

Engine oil plays a critical role in your vehicle’s engine: it forms a slippery layer on the metal surfaces of the engine, thus reducing friction and wear. Without oil, your vehicle’s engine will only run for a few minutes before seizing up – and the resulting damage will be bad. By adding oil and replacing it regularly, you can extend the life of an engine from a few minutes to several decades.

Good oil not only keeps friction to a minimum, but it also improves fuel economy, helps prevent degradation and rust that would otherwise damage parts, and it cools the engine by conducting away heat.

Two types of oil are available: synthetic and mineral oil. The latter is distilled crude oil (or