Most oil analysis material teaches how to read a report without teaching what the oil is. This book starts with the lubricant: the Stribeck curve and the three regimes, what base oils are made of, what each additive does and how it is consumed, and grease as a material in its own right.
That foundation is what makes a laboratory report interpretable, because every element on it is either a wear surface, an additive, or something that got in.
Study material written by Sensemore. It is not accredited training, it is not from any certification body’s question bank, and it confers no certification.