Maintenance and Service
The factory maintenance schedule, oil and fluid specs, warranty and what service at Lucas CDJR covers for the 2027 Grand Cherokee and Grand Cherokee L.

Maintenance and service for the 2027 Jeep Grand Cherokee in South Jersey runs on two things: an oil-change indicator that tells you when, and a factory chart that starts at 20,000 miles or 2 years and repeats every 10,000 miles out to 150,000 miles or 15 years. Keep to both and the factory warranty stays on your side through years of daily commuting, shore traffic and salted winter roads.
Lucas Chrysler Jeep Dodge Ram services Jeep, Chrysler, Dodge and Ram vehicles for drivers across South Jersey with factory-trained technicians, and the Grand Cherokee is one of the vehicles we see most. Specs behind the service items below are on the 2027 Grand Cherokee specs.
The schedule below is the factory maintenance plan from the 2027 Grand Cherokee owner’s manual, which prints one plan for the 3.6L V6 and one for the 2.0L Hurricane 4 Turbo. The Grand Cherokee L follows the same plans as the two-row.
| Mileage or time | What is due |
|---|---|
| 20,000 miles or 2 years | Inspect CV and universal joints, front suspension and tie rod ends, brake linings and parking brake |
| 30,000 miles or 3 years | Inspect CV and universal joints, axle fluid and transfer case fluid; replace the engine air filter |
| 40,000 miles or 4 years | Inspect CV and universal joints, front suspension and tie rod ends, brake linings and parking brake |
| 50,000 miles or 5 years | Inspect CV and universal joints; replace spark plugs on the Hurricane 4 Turbo |
| 60,000 miles or 6 years | Everything in the 20,000 and 30,000-mile visits |
| 70,000 miles or 7 years | Inspect CV and universal joints; change transfer case fluid if the vehicle tows often or runs off-road |
| 80,000 miles or 8 years | Same as the 40,000-mile visit |
| 90,000 miles or 9 years | Same as the 30,000-mile visit |
| 100,000 miles or 10 years | Everything in the 20,000-mile visit; replace spark plugs on both engines; replace the PCV valve on the V6, or inspect it and the turbo check valve on the Hurricane |
| 110,000 and 130,000 miles | Inspect CV and universal joints |
| 120,000 miles or 12 years | Everything in the 60,000-mile visit; change transfer case fluid |
| 140,000 miles or 14 years | Same as the 40,000-mile visit; change transfer case fluid if the vehicle tows often or runs off-road |
| 150,000 miles or 15 years | Everything in the 30,000-mile visit; replace the accessory drive belt and inspect its tensioner and pulley; replace spark plugs on the Hurricane 4 Turbo |
A few items run on their own clock. Coolant is flushed and replaced at 10 years or 150,000 miles, whichever comes first, and the cabin air filter is replaced every 12,000 miles. Spark plug intervals are mileage-based only, so the calendar does not apply.
The oil-change indicator sets the timing, and conditions move it. Frequent short trips, trailer towing, extreme heat or cold and E85 fuel all bring the message on sooner. When it shows, have the vehicle serviced within the next 500 miles. The indicator never overrides the ceiling for the engine under the hood:
| 3.6L V6 | 2.0L Hurricane 4 Turbo | |
|---|---|---|
| Oil change ceiling | 7,500 miles, 12 months or 350 engine hours | 10,000 miles, 12 months or 350 engine hours |
| Oil | Full synthetic SAE 0W-20, or SAE 5W-20, to specification MS-6395 | Full synthetic SAE 5W-30, API SP and GF-6A, to specification MS-13340 |
| Capacity with filter | 5 quarts | 5 quarts |
| Fuel | Regular, 87 octane; premium gives no benefit | 87 octane or higher; 91 or higher lets the turbo perform at its best, most noticeable in hot weather or under heavy load |
The 350-hour limit applies mostly to vehicles with long idle time, such as fleet use. Because the indicator governs the exact date, two owners at the same mileage can be called in at different times, and a summer of shore traffic is worth mentioning at the next write-up.
As mileage climbs, the work widens from oil and rotation to the systems that wear slowly.
The service advisor confirms each item with you before work starts. The chart lists no scheduled transmission fluid change.
| Fluid | Specification |
|---|---|
| Coolant | 10 year or 150,000 mile OAT coolant to specification MS.90032; 10.4 quarts on the Hurricane 4 Turbo, 11 quarts on the V6 (11.5 with the trailer tow package) |
| Transfer case | ATF+4 automatic transmission fluid |
| Axles | GL-5 synthetic axle lubricant, SAE 75W-85, with a friction modifier additive on the rear axle with the electronic limited slip differential |
| Brake fluid | DOT 3, SAE J1703 |
| Fuel tank | 23 gallons |
The main battery sits on the floor under the driver’s seat, and an auxiliary battery sits under the front passenger seat. Remote battery terminals are under the hood for jump-starts, which means a dead battery in a Mt Ephraim parking lot does not require lifting a seat.
Laredo through Altitude run P265/60TR18 all-season tires, Limited and Limited Reserve run P265/50HR20, Trailhawk runs P265/60TR18 all-terrain and Summit runs P275/45VR21. Rotating at the first sign of uneven wear, and on a 6,000 to 8,000-mile habit, keeps wear even across all four, and a Trailhawk driven on sand roads is worth a tire check after the trip.
Four-wheel disc brakes carry the load on every Grand Cherokee, and stop-and-go traffic along Route 541 plus winter road salt keep them working, so an inspection at each visit catches wear early.
Rain-sensing front wipers and a rear wiper are on most trims, so blades are a seasonal item before the first snow rather than a mileage item.

The 2027 Grand Cherokee is assembled at the Stellantis Detroit Assembly Complex, at the Mack and Jefferson plants, with a body of galvanized steel and aluminum and an eight-speed automatic behind both engines. Coverage backs that up: 5 years or 60,000 miles on the powertrain, 5 years of unlimited-mileage rust-through coverage and 5 years or 60,000 miles of roadside assistance.
A South Jersey winter is the local test of any vehicle, and road salt is its main ingredient. The galvanized body and the long rust-through term suit a vehicle that spends January on I-295, and a rinse that reaches the underbody after a salted week is a simple habit that protects it.
Ownership cost comes down to fuel, routine service and coverage, and the numbers on the Grand Cherokee are straightforward.
| Cost driver | 2027 Grand Cherokee |
|---|---|
| Fuel | Regular unleaded in both engines; 23-gallon tank; up to 529 miles per tank on the two-wheel-drive Hurricane |
| Warranty | 3 years or 36,000 miles basic; 5 years or 60,000 miles powertrain |
| Rust protection | 5 years, unlimited miles |
| Roadside help | 5 years or 60,000 miles |
| Routine service | Oil on the indicator, 7,500 miles at most on the V6 and 10,000 on the Hurricane; tires rotated at the first sign of uneven wear |
Fuel economy by engine is on the specs page, with EPA ratings from fueleconomy.gov. Scheduled work at Lucas can be booked online through Schedule Service.

Our service department works on the Grand Cherokee and the Grand Cherokee L with Jeep factory training and genuine Mopar parts. Book a visit through Schedule Service, send routine work through Express Lane, or call (609) 354-5619. Owners in Cherry Hill, Turnersville, Lawrenceville and Woodbury Heights book the same visits. Drivers from Burlington, Trenton and Robbinsville are a short drive from the shop on NJ-38.
Browse our service department page for current specials and the parts counter at Parts.
When the oil-change indicator calls for it, and never later than 7,500 miles or 12 months on the 3.6L V6, or 10,000 miles or 12 months on the 2.0L Hurricane 4 Turbo.
The V6 takes full synthetic SAE 0W-20, or SAE 5W-20, to specification MS-6395. The Hurricane 4 Turbo takes full synthetic SAE 5W-30 that meets API SP and GF-6A. Both hold 5 quarts with the filter.
At the first sign of uneven wear, even before the oil indicator comes on, and a steady habit is every 6,000 to 8,000 miles.
At 100,000 miles on the V6, and at 50,000, 100,000 and 150,000 miles on the Hurricane 4 Turbo. The interval is mileage-only.
At 10 years or 150,000 miles, whichever comes first.
Every 12,000 miles. The engine air filter is replaced every 30,000 miles.
Police, taxi, fleet, off-road or frequent trailer-towing use. Those vehicles get the axle fluid changed rather than just inspected, and the transfer case fluid changed at 70,000 and 140,000 miles instead of 120,000.
The main battery is on the floor under the driver’s seat and an auxiliary battery is under the front passenger seat, with remote terminals under the hood.
Regular unleaded in both the V6 and the Hurricane 4 Turbo. Premium is optional on the Hurricane and gives no benefit on the V6.
Yes, for 5 years with unlimited mileage.
5 years or 60,000 miles, whichever comes first.
A rinse that reaches the underbody after a salted week and a brake check at each service visit are the two habits worth keeping through a South Jersey winter.
Yes, both bodies are serviced at Lucas on the same schedule.
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