We have appraised truck generating and starting systems with a view to establishing the major requirements which must be met to insure a high degree of reliability. This review brings out the fact that it is necessary to equip trucks with the type of electrical components which will match the requirements of the job. In the smaller trucks (utilizing a minimum of electrical loads), use of passenger-car components is permissible and economically desirable. In the larger trucks, with their heavier electrical loads and longer periods between over-We have appraised truck generating and starting systems with a view to establishing the major requirements which must be met to insure a high degree of reliability. This review brings out the fact that it is necessary to equip trucks with the type of electrical components which will match the requirements of the job. In the smaller trucks (utilizing a minimum of electrical loads), use of passenger-car components is permissible and economically desirable. In the larger trucks, with their heavier electrical loads and longer periods between over-We have appraised truck generating and starting systems with a view to establishing the major requirements which must be met to insure a high degree of reliability. This review brings out the fact that it is necessary to equip trucks with the type of electrical components which will match the requirements of the job. In the smaller trucks (utilizing a minimum of electrical loads), use of passenger-car components is permissible and economically desirable. In the larger trucks, with their heavier electrical loads and longer periods between over-tem can only be realized if the truck user conscientiously follows proper installation and maintenance procedures. Improper procedures will not only shorten the life of the system, but can also result in serious engine damage. The search for new ignition systems is continuing. The transistorized system appears to be the best approach to date for overcoming the limitations imposed on the present system by the breaker contacts.