Follow the maintenance schedule in this section in order to obtain proper operation and preserve the warranty
on the engine.
If the engine is operating in ambient temperatures consistently below -18°C [0°F] or above 38°C [100°F],
perform maintenance at shorter intervals. Shorter maintenance intervals are also required if the engine is
operated in a dusty environment or if frequent stops are made. See your Authorized Repair Location for recom-
Use the chart provided at the end of this section as a convenient way to keep a record of maintenance
If your engine is equipped with a component or an accessory not manufactured by Cummins Engine Company,
Inc., refer to the component manufacturer's maintenance recommendations. A listing of suppliers' addresses
and telephone numbers is provided in Component Manufacturers, Section C.