Service and ownership
Oil changes by the indicator and never past 7,500 miles, plus the full 2027 schedule, warranty and salt-air care for a Cape Cod Gladiator.
Key Numbers: 2027 Jeep Gladiator Service
Servicing a 2027 Jeep Gladiator starts with the oil change indicator, not a fixed mileage: when the message appears, service is due within the next 500 miles, and an oil change should never go past 7,500 miles, 12 months or 350 hours of engine run time. Every other item on the schedule hangs off that oil change, which is why a Cape Gladiator that sees salt in winter and sand in summer is best kept on the indicator's rhythm.
The Premier Cape Cod service department looks after Gladiators for drivers from Falmouth, Plymouth and Marshfield, with genuine Mopar parts and factory-trained technicians. A truck that spends winter on salted bridge approaches and summer in a sandy beach lot collects its wear in the places the schedule inspects first, so the inspection items matter as much as the oil interval. The Jeep service page has the booking tools.
The schedule has two layers: items that come with every oil change and items that come at set mileage. The oil change layer is the same for every trim.
Check the engine oil level, interior and exterior lights, battery terminals, brake pads, rotors and fluid level, steering, suspension, axle boots and chassis, wipers and washer fluid, tire pressure and the cooling system reservoirs. A monthly look takes ten minutes, and it is the cheapest protection a salt-exposed truck gets.
The 3.6L V6 is the only engine in the 2027 Gladiator, so one oil specification covers every trim.
| Item | Specification |
|---|---|
| Oil change interval | Per the oil change indicator; never past 7,500 miles, 12 months or 350 hours of engine run time |
| After the indicator message | Service within the next 500 miles |
| Recommended oil | Mopar SAE 0W-20 full synthetic, or Mopar SAE 5W-20 meeting MS-6395 |
| Other oils | Equivalent oil is acceptable if it carries the API Starburst mark |
| Oil capacity | 5 quarts with the filter |
| Fuel | Regular unleaded, 87 octane; no E85 or ethanol blends above 15 percent |
Beyond the oil change layer, the 2027 schedule calls for the following at set mileage.
| Mileage | What the schedule calls for |
|---|---|
| Every 12,000 miles | Replace the cabin air filter |
| Every 20,000 miles | Inspect and replace as necessary the brake linings, inspect the front and rear suspension and tie rod ends, and adjust the parking brake |
| 20,000, 60,000, 100,000 and 140,000 miles | Inspect the front and rear axle fluid |
| 30,000, 60,000, 90,000, 120,000 and 150,000 miles | Replace the engine air filter |
| 30,000, 90,000 and 150,000 miles | Inspect the transfer case fluid |
| 100,000 miles | Replace the spark plugs, and inspect and replace the PCV valve if necessary |
| 100,000 and 150,000 miles | Coolant service, with the coolant flushed and replaced at 10 years or 150,000 miles, whichever comes first |
| 150,000 miles | Inspect the accessory drive belt, tensioner and pulley |
Spark plug replacement is based on mileage alone, so the calendar does not bring it forward. Hard use pulls some services forward, and the next table shows how.
| Use | Service | Mileage |
|---|---|---|
| Off-road driving, fleet work or frequent trailer towing | Change the front and rear axle fluid | 40,000, 80,000 and 120,000 miles |
| Frequent trailer towing or fleet work | Change the transfer case fluid | 60,000 and 120,000 miles |
A Gladiator that launches a boat every weekend in July or drives the beach under a permit belongs on the severe-duty schedule for axle fluid, and our service advisors will say so when they see the truck.
Four-wheel disc brakes carry anti-lock braking and brake assist, and the brake linings are inspected every 20,000 miles. Brake fluid is Mopar DOT 3. The front and rear suspension and tie rod ends get the same 20,000-mile inspection, and the parking brake is adjusted at the same visit.
Tires rotate at every oil change. The tire spec changes with the trim, from 245/75R17 all-terrain on the Sport S to 255/75R17 mud-terrain on the Willys and 285/70R17 all-terrain on the Rubicon and Mojave, so a rotation at every oil change keeps each set wearing evenly.
| Fluid | What the 2027 Gladiator uses |
|---|---|
| Engine coolant | 13.0 quarts of OAT coolant meeting MS.90032 |
| Automatic transmission | Mopar ZF 8 and 9 Speed ATF; the factory fill lasts under normal use and routine fluid and filter changes are not required |
| Transfer case | Mopar ATF+4 |
| Front and rear axles | Mopar Gear and Axle Lubricant, SAE 75W85, API GL-5; Trac-Lok limited-slip axles need a friction modifier |
| Brakes | Mopar DOT 3 brake fluid |
The battery terminals are cleaned and tightened at every oil change, the cooling system hoses are inspected at the same visit and the accessory drive belt is inspected at 150,000 miles.
The 2027 Gladiator is built for hard use, and its service schedule reflects it. Dana 44 axles, skid plates over the fuel tank, transmission and transfer case, and a transmission fluid that needs no routine change are part of how it is built. The truck is assembled in Toledo, Ohio, with an engine and transmission built in the United States. The corrosion warranty runs 5 years with no mileage limit, which matters on a peninsula where salt works on the underside from both the road and the air.
Salt and sand are the local variables. Sand is abrasive, and a truck that has spent the day at Sandy Neck in Barnstable needs a rinse of the wheel wells and undercarriage before the grit dries, while a winter of Route 6 salt spray calls for the same attention. Our service department will check the inspection items most exposed to that wear at every oil change.
Ownership costs come from fuel, scheduled service and the warranty that covers the rest. EPA estimates $3,550 a year in fuel at 19 mpg combined, a figure published on fueleconomy.gov, and the V6 runs on regular gasoline. The table shows what is covered and for how long.
| Coverage | Term |
|---|---|
| Basic limited warranty | 3 years or 36,000 miles |
| Powertrain limited warranty | 5 years or 60,000 miles |
| Corrosion | 5 years, unlimited miles |
| Roadside assistance | 5 years or 60,000 miles |
Our service advisors quote scheduled work on your VIN, so the figure you see is for your truck. Jeep also lists MyFlexCare Service, a service plan sold through the dealer, so ask us for details at the desk.
Premier Cape Cod's technicians are factory trained, and the parts are genuine Mopar. Book a visit on the Jeep service page, browse parts and accessories or call (508) 815-5000. Drivers from Falmouth to Plymouth bring their trucks to 556 Yarmouth Rd in Hyannis, and the 2027 Gladiators on our lot are serviced where they were sold. Last year's schedule is still posted: the 2026 Gladiator maintenance page.
When the oil change indicator calls for it, and never more than 7,500 miles, 12 months or 350 hours of engine run time apart. After the message appears, service within the next 500 miles.
Mopar SAE 0W-20 full synthetic or Mopar SAE 5W-20 meeting MS-6395, and 5 quarts with the filter.
At 100,000 miles. The interval is based on mileage only.
Routine fluid and filter changes are not required under normal use. The factory fill uses Mopar ZF 8 and 9 Speed ATF.
The severe-duty schedule changes the front and rear axle fluid at 40,000, 80,000 and 120,000 miles for off-road use or frequent trailer towing.
At every oil change, and at the first sign of irregular wear even before the oil indicator comes on.
3 years or 36,000 miles basic, 5 years or 60,000 miles powertrain, 5 years of corrosion protection with unlimited miles and 5 years or 60,000 miles of roadside assistance.
Yes. Our factory-trained technicians service 2027 Gladiators with genuine Mopar parts, and you can book on the Jeep service page.
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