The fourth of six instructional blocks in automotive mechanics, the lessons and supportive information in the document provide a guide for teachers in planning an instructional program in automotive fuel systems at the secondary and post secondary level. The material, as organized, is a suggested sequence of instruction within each block. Each lesson is stated in terms of a specific teaching objective, teaching aids, references, and an outline of information. Upon completion of the 58 lessons in this block of work, students will be able to: (1) describe the processes of producing and adapting gasoline as a modern automotive fuel and relate the technology required for its efficient utilization, (2) identify the major components of typical automotive fuel systems and exhaust systems, (3) relate the functional significance of the components to the operation of the total system, (4) analyze the condition and performance of the components to determine their functional effect within standardized specifications and legal requirements, and (5) correct diagnosed malfunctions by proper adjustment and necessary repair and replacements. Included with the course outline are transparency masters and a reference guide listing related books, texts, and other publications. (MW)