2009 Mercury Mariner Scheduled Maintenance Guide 1st Printing - Page 44

SPECIAL OPERATING CONDITIONS Operating in dusty conditions such as unpaved or dusty roads Every 5,000 miles Rotate tires, inspect tires for wear and measure tread depth Inspect the wheels and related components for abnormal noise, wear, looseness, or drag Every 5,000 miles or 6 months Change engine oil and replace oil filter Inspect and lubricate U-joints Every 15,000 miles Replace fuel filter (Crown Vic, Grand Marquis, Town Car, Mustang, Ranger, F-Super Duty, Expedition EL and Navigator EL) Every 30,000 miles Change automatic transmission/transaxle fluid (not required on 6R60/6R75/TorqShift transmissions) Replace wheel bearing grease and grease seals on 4x2 front wheel bearings (if non-sealed bearings) Every 50,000 miles Change manual transmission fluid Change rear axle lubricant (E-450 and F-450/550 only) Every 60,000 miles Change transfer case fluid As required Replace engine air filter Replace cabin air filter (if equipped) 44 Scheduled Maintenance 2009 Scheduled Maintenance Guide (smg) Scheduled Maintenance Guide USA (fus)