2004 Jeep Grand Cherokee Owner's Manual - Page 308

M 308 SCHEDULE "B" A I N Miles T (Kilometers) E N Change the engine oil and engine oil filter. A Inspect the engine air cleaner filter, replace if necN C essary. E Inspect the PCV Valve, replace if necessary. S C H E D U L E S 108,000 (173 000) X 111,000 (178 000) X 114,000 (182 000) X 117,000 (187 000) X 120,000 (192 000) X X X X X X X X X X 8 Replace the spark plugs. Lubricate the upper knuckle ball stud at steering & suspension ball joints. Inspect the brake linings. Clean and lubricate the brake caliper pins. Drain and refill the front and rear axle fluid. Drain and refill the automatic transmission fluid, and change filter (4.0L Only). Drain and refill the automatic transmission fluid, and replace main sump filter (4.7L Only). X X X X X