George G. Scott, Jr. has been an auto mechanic for over thirty years, and he has also found time in his busy schedule to create this website dedicated to providing both the average person and future auto mechanics with information about car and truck repair. While the site does contain some banner advertisements, there is plenty of fine free material here as well. Visitors can begin their journey...

This resource on internal combustion engines comes from a mechanical engineering professor at Colorado State University. It is essentially an online textbook with three main chapters, which cover the topics of thermodynamics, heat transfer, and fluid mechanics involved in engine operation. Users should have an understanding of basic engine components, and a background in calculus would be helpful....

This website provides and easy-to-read overview on how a car engine works, with more detailed pages and diagrams on Internal Combustion, Parts of an Engine, What Can Go Wrong, Engine Subsystems, How to Help an Engine Produce More Power, and other information. Note of warning: The site is heavy on advertising.