Book excerpt: The automotive lubricants arena has undergone significant changes since the first edition of this book was published in 1996. Environmental concerns, particularly reagarding improvement of ar quality have been important in recent years, Reduced emmissions are directly related to changes in lubricant specifications and quality, and the second edition of the Automotive Lubricants Reference Book reflects the urgency of such matters by including updated and expanded detail. This second edition also considers the recent phenomenon of increased consolidation within the oil and petroleum additive arenas, which has resulted in fewer poeple for research, devlopment, and implementation, along with fewer competing companies. After reviewing the first edition the authors have fully reviewed and updated the information to fit in with the changes in technology and markets. Chapters include, Introduction and Fundamentals Constituents of Modern Lubricants Crankcase Oil Testing Crankcase Oil Quality Levels and Formulations Practical Experiences with Lubricant Problems Performance Levels, Classification, Specification, and Approval of Engine Lubricants. Other Lubricants for Road Vehicles Other Specialized Oils of Interest Blending, Storage, Purchase, and Use Safety Health, and the Environment The Future.