General Information

Maintenance and lubrication service recommendations have been compiled to provide maximum protection for the owner's investment against all reasonable types of driving conditions. Since these conditions vary with the individual operator's driving habits, (area in which the vehicle is operated, and type of service to which the vehicle is subject) it is necessary to prescribe lubrication and maintenance service on a time schedule as well as mileage interval basis. The maintenance charts are related to "Heavy Duty Cycle" only.