Intended primarily but not solely for use at the postsecondary level, this curriculum guide contains six units on energy efficiency that were designed to be incorporated into an existing program in automobile mechanics. The following topics are examined: drivers and public awareness (relationship between driving and fuel consumption); ignition systems (modifications that can be performed on the electrical system to maximize fuel efficiency); the fuel system (correct adjustments, calibrations, and possible modifications of the carburetor and fuel pump); brakes and suspension systems (alignment, shocks, wheel balance, tires, brakes, and their effect on driver comfort and vehicle fuel economy); transmissions (ways to conserve energy); and alternate fuel sources (including engine modifications necessary for their utilization). Covered in each lesson are unit rationale, necessary advanced preparations, anticipated instructional time, guidelines for implementing the unit, unit activities, and unit references. (MN)