1987-2010 Jeep Grand Cherokee WJ Workshop Service Repair

LUBRICATION AND MAINTENANCE CONTENTS page page GENERAL INFORMATION ................... 1 JUMP STARTING, HOISTING AND TOWING .... 8 MAINTENANCE SCHEDULES ................ 3 GENERAL INFORMATION INDEX page page GENERAL INFORMATION CLASSIFICATION OF LUBRICANTS ........... 2 FLUID CAPACITIES ....................... 2 INTERNATIONAL SYMBOLS ................ 1 INTRODUCTION ......................... 1 PARTS AND LUBRICANT RECOMMENDATIONS .................... 1 GENERAL INFORMATION INTRODUCTION Service and maintenance procedures for compo- nents and systems listed in Schedule—A or B can be found by using the Group Tab Locator index at the front of this manual. If it is not clear which group contains the information needed, refer to the index at the back of this manual. There are two maintenance schedules that show proper service based on the conditions that the vehicle is subjected to. Schedule—A, lists scheduled maintenance to be performed when the vehicle is used for general trans- portation. Schedule—B, lists maintenance intervals for vehicles that are operated under the conditions listed at the beginning of the Maintenance Schedule section. Use the schedule that best describes your driving conditions. Where time and mileage are listed, follow the interval that occurs first. PARTS AND LUBRICANT RECOMMENDATIONS When service is required, Chrysler Corporation recommends that only Mopart brand parts, lubricants and chemicals be used. Mopar provides the best engineered products for servicing Chrysler Cor- poration vehicles. INTERNATIONAL SYMBOLS Chrysler Corporation uses international symbols to identify engine compartment lubricant and fluid inspection and fill locations (Fig. 1). Fig. 1 International Symbols ZJ LUBRICATION AND MAINTENANCE 0-1

CLASSIFICATION OF LUBRICANTS Only lubricants that are endorsed by the following organization should be used to service a Chrysler Corporation vehicle. • Society of Automotive Engineers (SAE) • American Petroleum Institute (API) (Fig. 2) • National Lubricating Grease Institute (NLGI) (Fig. 3) ENGINE OIL SAE VISCOSITY RATING INDICATES ENGINE OIL VISCOSITY An SAE viscosity grade is used to specify the viscosity of engine oil. SAE 30 specifies a single viscosity engine oil. Engine oils also have multiple viscosities. These are specified with a dual SAE viscosity grade which indicates the cold-to-hot tempera- ture viscosity range. • SAE 30 = single grade engine oil. • SAE 10W-30 = multiple grade engine oil. API QUALITY CLASSIFICATION The API Service Grade specifies the type of performance the engine oil is intended to provide. The API Service Grade specifications also apply to energy con- serving engine oils. Use engine oils that are API Service Certified. 5W-30 and 10W-30 MOPAR engine oils conform to specifications. Refer to Group 9, Engine for engine oil specification. GEAR LUBRICANTS SAE ratings also apply to multiple grade gear lubricants. In addition, API classification defines the lubricants usage. LUBRICANTS AND GREASES Lubricating grease is rated for quality and usage by the NLGI. All approved products have the NLGI symbol (Fig. 3) on the label. At the bottom NLGI symbol is the usage and quality identification letters. Wheel bearing lubricant is identified by the letter “G”. Chassis lubricant is identified by the latter “L”. The letter following the usage letter indicates the quality of the lubricant. The following symbols indi- cate the highest quality. FLUID CAPACITIES FUEL TANK All............................87.4 L (23 gal.) ENGINE OIL W/FILTER CHANGE 4.0L ...........................5.7 L (6.0 qts.) 5.2L ...........................4.7 L (5.0 qts.) 5.9L ...........................4.7 L (5.0 qts.) COOLING SYSTEM 4.0L ........................11.4 L (12.0 qts.)* 5.2L ........................14.1 L (14.9 qts.)* 5.9L ........................14.1 L (14.9 qts.)* *Includes 2.2 L (2.3 qts.) for coolant recovery bottle. AUTOMATIC TRANSMISSION Dry fill capacity.* 42RE & 44RE ............9.3-11.7L (19.5-22 pts.) 46RE ...................9.2-13.3 L (19.5-28 pts.) *Depending on type and size of internal cooler, length and inside diameter of cooler lines, or use of an auxil- iary cooler, these figures may vary. Refer to Group 21, Transmission for proper fluid fill procedure. TRANSFER CASE 242 NVG .......................1.4 L (3.0 pts.) 249 NVG .......................1.1 L (2.5 pts.) FRONT AXLE 181 FBI .......................1.18 L (2.5 pts.) REAR AXLE 194 RBI* .......................1.6 L (3.5 pts.) 216 RBA*.....................2.24 L (4.75 pts.) *If the vehicle is equipped with TRAC-LOK, include 0.11 L (0.25 pts.) of friction modifier. NOTE: Vehicles with trailer tow, must use a syn- thetic lubricant. Refer to Group 3, Differential and Driveline for service procedures. Fig. 2 API Symbol Fig. 3 NLGI Symbol 0-2 LUBRICATION AND MAINTENANCE ZJ GENERAL INFORMATION (Continued)

MAINTENANCE SCHEDULES INDEX page page GENERAL INFORMATION INTRODUCTION ......................... 3 SCHEDULE—A .......................... 3 SCHEDULE—B .......................... 5 UNSCHEDULED INSPECTION ............... 3 GENERAL INFORMATION INTRODUCTION There are two maintenance schedules that show proper service intervals for ZJ vehicles. Use the schedule that best describes the conditions the vehicle is operated under. When mileage and time is listed, follow the interval that occurs first. Schedule-A lists all the scheduled maintenance to be performed under normal operating conditions. Schedule-B is a schedule for vehicles that are operated under the following conditions: • Frequent short trips driving less than 5 miles (8 km) • Frequent driving in dusty conditions • Extensive idling • Trailer towing • Sustained high speed operation • Off road driving • Desert operation • Frequent starting and stopping • Cold climate operation • Commercial service EMISSION CONTROL SYSTEM MAINTENANCE The scheduled emission maintenance listed in bold type on the Maintenance Schedules, must be done at the mileage specified to assure the continued proper functioning of the emission control system. These, and all other maintenance services included in this manual, should be done to provide the best vehicle performance and reliability. More frequent maintenance may be needed for vehicles in severe operating conditions such as dusty areas and very short trip driving. UNSCHEDULED INSPECTION AT EACH STOP FOR FUEL • Check engine oil level, add as required. • Check windshield washer solvent and add if required. ONCE A MONTH • Check tire pressure and look for unusual wear or damage. • Inspect battery and clean and tighten terminals as required. Check electrolyte level and add water as needed. • Check fluid levels of coolant reservoir, power steering and transmission and add as needed. • Check all lights and all other electrical items for correct operation. AT EACH OIL CHANGE • Inspect exhaust system. • Inspect brake hoses. • Rotate the tires at each oil change interval shown on Schedule—A (7,500 miles) or every other interval shown on Schedule—B (6,000 miles). • Check coolant level, hoses and clamps. • Lubricate suspension ball joints. • After completion of off-road (4WD) operation, the underside of the vehicle should be thoroughly inspected. Examine threaded fasteners for looseness. SCHEDULE—A 7,500 miles (12 000 km) or at 6 months • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). 15,000 Miles (24 000 km) or at 12 months • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage. 22,500 Miles (36 000 km) or at 18 months • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). • Inspect brake linings. 30,000 Miles (48 000 km) or at 24 months • Change engine oil. • Replace engine oil filter. • Replace engine air cleaner element. ZJ LUBRICATION AND MAINTENANCE 0-3

• Replace spark plugs. • Inspect drive belt. • Lubricate steering linkage. • Drain and refill automatic transmission fluid. • Drain and refill transfer case fluid. 37,500 Miles (60 000 km) or at 30 months • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). 45,000 Miles (72 000 km) or at 36 months • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage. • Inspect brake linings. • Flush and replace engine coolant at 36 months, regardless of mileage. 52,500 Miles (84 000 km) or at 42 months • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). • Flush and replace engine coolant if not done at 36 months. 60,000 Miles (96 000 km) or at 48 months • Change engine oil. • Replace engine oil filter. • Replace engine air cleaner element. • Replace ignition wires. • Replace spark plugs. • Inspect PCV valve and replace if necessary (5.2L & 5.9L only).* • Inspect drive belt. • Lubricate steering linkage. • Drain and refill automatic transmission fluid. • Drain and refill transfer case fluid. • Replace fuel filter.** 67,500 Miles (108 000 km) or at 54 months • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). • Inspect brake linings. 75,000 Miles (120 000 km) or at 60 months • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage. • Flush and replace engine coolant if it has been 30,000 miles (48 000 km) or 24 months since last change. 82,500 Miles (132 000 km) or at 66 months • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). • Flush and replace engine coolant if it has been 30,000 miles (48 000 km) or 24 months since last change. 90,000 Miles (144 000 km) or at 72 months • Change engine oil. • Replace engine oil filter. • Replace engine air cleaner element. • Replace spark plugs. • Inspect drive belt. • Lubricate steering linkage. • Drain and refill automatic transmission fluid. • Drain and refill transfer case fluid. • Inspect brake linings. 97,500 Miles (156 000 km) or at 78 months • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). 105,000 Miles (168 000 km) or at 84 months • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage. • Flush and replace engine coolant if it has been 30,000 miles (48 000 km) or 24 months since last change. 112,500 Miles (180 000 km) or at 90 months • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). • Inspect brake linings. • Flush and replace engine coolant if it has been 30,000 miles (48 000 km) or 24 months since last change. 120,000 Miles (192 000 km) or at 96 months • Change engine oil. • Replace engine oil filter. • Replace engine air cleaner element. • Replace ignition wires. • Replace spark plugs. • Inspect PCV valve and replace if necessary (5.2L & 5.9L only).* • Inspect drive belt. • Lubricate steering linkage. • Drain and refill automatic transmission fluid. • Drain and refill transfer case fluid. • Replace fuel filter.** *This maintenance is recommended, but is not required to maintain warranty on the PCV valve. **Recommended for proper vehicle performance for vehicles built for sale in California. 0-4 LUBRICATION AND MAINTENANCE ZJ GENERAL INFORMATION (Continued)

IMPORTANT: Inspection and service should also be performed anytime a malfunction is observed or suspected. SCHEDULE—B 3,000 Miles (5 000 km) • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). 6,000 Miles (10 000 km) • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). 9,000 Miles (14 000 km) • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). 12,000 Miles (19 000 km) • Change engine oil. • Replace engine oil filter. • Drain and refill automatic transmission fluid. • Drain and refill front and rear axles. • Lubricate steering linkage (4x4 only). • Inspect brake linings. 15,000 miles (24 000 km) • Change engine oil. • Replace engine oil filter. • Inspect engine air cleaner element, replace as necessary. • Lubricate steering linkage. 18,000 Miles (29 000 km) • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). 21,000 Miles (34 000 km) • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). 24,000 Miles (38 000 km) • Change engine oil. • Replace engine oil filter. • Drain and refill automatic transmission fluid. • Drain and refill front and rear axles. • Lubricate steering linkage (4x4 only). • Inspect brake linings. 27,000 Miles (43 000 km) • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). 30,000 Miles (48 000 km) • Change engine oil. • Replace engine oil filter. • Replace engine air cleaner element. • Inspect PCV valve and replace if necessary (5.2L & 5.9L only).* • Replace spark plugs. • Inspect drive belt. • Drain and refill transfer case fluid. • Lubricate steering linkage. 33,000 Miles (53 000 km) • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). 36,000 Miles (58 000 km) • Change engine oil. • Replace engine oil filter. • Drain and refill automatic transmission fluid. • Drain and refill front and rear axles. • Lubricate steering linkage (4x4 only). • Inspect brake linings. 39,000 Miles (62 000 km) • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). 42,000 Miles (67 000 km) • Change engine oil. • Replace engine oil filter. • Lubricate steering linkage (4x4 only). 45,000 Miles (72 000 km) • Change engine oil. • Replace engine oil filter. • Inspect engine air cleaner element, replace as necessary. • Lubricate steering linkage. 48,000 Miles (77 000 km) • Change engine oil. • Replace engine oil filter. • Drain and refill automatic transmission fluid. • Drain and refill front and rear axles. • Lubricate steering linkage (4x4 only). • Inspect brake linings. 51,000 Miles (82 000 km) • Change engine oil. • Replace engine oil filter. • Flush and replace engine coolant. • Lubricate steering linkage (4x4 only). ZJ LUBRICATION AND MAINTENANCE 0-5 GENERAL INFORMATION (Continued)

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1987-2010 Jeep Grand Cherokee WJ Workshop Service Repair

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