Types and composition of oils
What engine oil is made of, how synthetic differs from mineral, what hydrocracking is, and whether the two can be mixed.
Subsections
- Composition and types of engine oil Base oil, the additive package, and why there are so many different oils on the market.
- Synthetic or mineral The differences, semi-synthetic oils, mixing them, and why synthetic oil exists at all.
- Hydrocracked oils What hydrocracking is, how to tell such an oil apart, and whether it's safe to use.