2008 Jeep Commander Owner Manual - Page 444

M 444 MAINTENANCE SCHEDULES A I N T E N Maintenance Items A N Replace the engine air cleaner filter. C Check the PCV valve, replace if necessary. Perform E the first inspection at 60,000 miles (100 000 km) or 60 S C H E D U L E S Perform Maintenance Every (Where time and mileage are listed, follow the interval that occurs first.) Miles 30,000 30,000 30,000 30,000 30,000 60,000 Kilometers 50 000 50 000 50 000 50 000 50 000 100 000 or Months 30 30 30 30 30 60 8 months. Inspect the transfer case fluid. Replace the top row of spark plugs (4.7L Only). ** Replace the spark plugs (3.7L/5.7L Engines). Change the automatic transmission fluid & filter if using your vehicle for any of the following: police, taxi, fleet or frequent trailer towing. Change the transfer case fluid if using your vehicle for any of the following: police, taxi, fleet, off-road or frequent trailer towing. Flush and replace the engine coolant. Replace the ignition cables (4.7L Only). 60,000 102,000 102,000 100 000 170 000 170 000 60 60 102