2015 Lincoln Navigator Owner Manual Printing 1 - Page 456

Scheduled Maintenance 455 SPECIAL OPERATING CONDITIONS If you operate your vehicle primarily in any of the following conditions, you need to perform additional maintenance as indicated. If you occasionally operate your vehicle under any of these conditions, it is not necessary to perform the additional maintenance. For specific recommendations, see your dealership service advisor or technician. Perform the services shown in the following tables when specified or within 3000 miles (4800 kilometers) of the OIL CHANGE REQUIRED message appearing in the information display. Example #1: The OIL CHANGE REQUIRED message comes on at 28751 miles (46270 kilometers); perform the 30000 mile (48000 kilometer) automatic transmission fluid replacement. Example #2: The OIL CHANGE REQUIRED message has not come on, but the odometer reads 30000 miles (48000 kilometers); perform the engine air filter replacement. (i.e., Intelligent Oil-Life Monitor was reset at 25000 miles [40000 kilometers].) Towing a trailer or using a camper or car-top carrier As required Change engine oil and filter as indicated by the information display and perform services listed in the Normal Scheduled Maintenance chart. Inspect frequently, Inspect and lubricate U-joints. service as required See axle maintenance items under Exceptions. Every 60000 miles Change transfer case fluid (Four-wheel drive (96000 km) vehicles).