Jeep›Grand Cherokee›2018›3.0L Diesel/jeep/grand-cherokee/2018/3-0l-diesel/

WK platform

2018 Jeep Grand Cherokee — 3.0L Diesel

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 Grand Cherokee 3.0L Diesel. Covers both the standard and High Output 3.0L Diesel.

Body SUVEngine 3.0L DieselTransmission Automatic 8-spd

The 2018 Jeep Grand Cherokee, built on the WK platform and powered by a 3.0‑liter diesel engine, pairs an eight‑speed automatic transmission with a 22/30/25 mpg EPA rating and an 8.0‑quart oil capacity lubricated by 5W‑40 viscosity. Its owner complaint count of 840 and eleven recorded recalls represent a marked decline from the 2,369 complaints recorded in 2014, while the most recent 2026 figure shows only nine complaints, indicating a clear improvement in reliability over the model’s lifespan. Consequently, the 2018 model year sits near the lower end of the reliability spectrum for this lineage, offering a comparatively dependable reference point for researchers.

Model year2019 2018 2017 2016 2015 2014

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity8.0 qtOEM · verified

Engine oil type5W-40OEM · verified

Lug nut torque110 ft-lbsOEM · verified

EPA fuel economy22/30/25 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI Auxiliary for Start Stop: 401 · Auxiliary for Start Stop: 200 CCA battery, OE oil filter 04884899AC. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI Auxiliary for Start Stop: 401 · Auxiliary for Start Stop: 200 CCAOEM · verified

Tire size265/50R20OEM · verified

Wheel / rim8.0 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter	04884899AC alt 04892339BE
Engine air filter	04861756AA alt 04861688AB
Fuel filter	04726067AB alt 04726067AA
Spark plug	SP149212AC alt SP143877AB
Battery	BBH7A001AA alt BBAUX101AB
Front wiper blades	68194931AB alt 68194930AB
Serpentine belt	68207171AD alt 05038725AA
Thermostat	52028898AJ alt 68157217AA
Cabin air filter	68260792AB alt 68606182AA

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

Transmission

Automatic 8-spd

Dimensions & weight NHTSA vPIC

Overall length	189.8 in
Overall width	76.4 in
Overall height	69.3 in
Wheelbase	115 in
Curb weight	4676 lb
Track (front / rear)	63.8 / 64.2 in
Weight distribution (front / rear)	51/49

Ratings & economy EPA / vPIC

EPA city / highway / combined	22 / 30 / 25 mpg
Drivetrain	Rear-Wheel Drive
Recommended fuel	Diesel

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

No 2018 road test on record; the results below are same-engine tests from nearby model years, each shown under its own year.

7.8–8.3 sec0–60 mph (tested)quickest 7.80 sec — 2014 Summit EcoDiesel

240 hpHorsepower (as tested)

420 lb-ftTorque (as tested)

Year	Trim / engine	0–60	¼ mile	HP	Drivetrain
2014	Summit EcoDiesel 3.0L Turbo Diesel V6	7.80 sec	16.00 sec	240 hp	4x4
2014	Summit EcoDiesel 3.0L Turbo Diesel V6	8.00 sec	16.10 sec	240 hp	4x4
2014	Limited EcoDiesel 3.0L Turbo Diesel V6	8.30 sec	16.40 sec	240 hp	4x4

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 8.0 qt of 5W-40 engine oil, GL-5 · Synthetic · SAE 75W · SAE 75W · SAE 75W in the differential, DOT 3 brake fluid. Torque lug nuts to 130 ft-lbs. The firing order is 1-8-4-3-6-5-7-2. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Lubricants & capacities

Automatic Transmission Fluid	Mopar ZF Automatic transmission fluid
Automatic Transmission Fluid Capacity	9.0
Brake Fluid	DOT 3
Differential Gear Oil	GL-5 · Synthetic · SAE 75W · SAE 75W · SAE 75W
Engine Coolant	MS-12106
Engine Coolant Capacity	12.0
Engine Coolant	MS-12106
Engine Coolant Capacity	10.4

Engine torques

Crankshaft Position (CKP) Sensor Bolt(s)	4.4 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)	5.9 ft-lbs
Camshaft Bearing/Carrier Cap Bolts or Studs	96.0 inch lbs. ft-lbs
Intake Manifold to Engine Bolts	12 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	17 ft-lbs
Intake Manifold to Engine Bolts	9 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	18 ft-lbs
Intake Manifold to Engine Bolts	9 ft-lbs

Chassis torques

Lug Nuts	110 ft-lbs
Lug Nuts	Off Road Adventure II Package: 130 ft-lbs
Lug Nuts	130 ft-lbs
Lug Nuts	110 ft-lbs
Lug Nuts	130 ft-lbs
Lug Nuts	130 ft-lbs
Front Wheel Hub	229.0 Do not re-use old hub nut ft-lbs
Rear Wheel Hub	229.0 Do not re-use old hub nut ft-lbs

Ignition

Cylinder Firing Order	1-4-2-5-3-6
Cylinder Firing Order	1-2-3-4-5-6
Cylinder Firing Order	1-8-4-3-6-5-7-2
Spark Plug Manufacturer	Jeep
Spark Plug Gap	.043 in
Spark Plug Torque	18 ft-lbs

Battery & A/C

Refrigerant Capacity	R134a
Oil Group	PAG
Oil Type	ND-12
Oil Capacity	4.00 oz
Standard BCI Group Number	Auxiliary for Start Stop: 401
Standard BCI Cranking Performance	Auxiliary for Start Stop: 200 cca

Service checks

Fuel Pump Pressure Minimum	56.0 psi
Fuel Pump Pressure Maximum	60.0 psi
Regulated Fuel System Pressure (With Vacuum)	56.0-60.0 psi
Engine Compression	100

Brakes

Brake Caliper Bolt to Carrier Torque	Front: 41; Rear: 20
Brake Caliper Carrier to Hub Bolt Torque	Front: 148; Rear: 89
Brake Caliper Bolt to Carrier Torque	Front: 41; Rear: 20
Brake Caliper Carrier to Hub Bolt Torque	Front: 148; Rear: 89
Vented Rotor Minimum Thickness after Refinish	Front: 1.200; Rear: .492
Variation from Parallelism Thickness Variation	.00035
Maximum Rotor Runout	.002
Vented Rotor Minimum Thickness after Refinish	Front: 1.200; Rear: .492

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 4 stages

1	88.0 inch lbs.	88 in
2	18.0 ft. lbs.	18 ft. lbs
3	75.0 degrees; Use a torque wrench for the following step	75 degrees
4	Verify each bolt is torqued to 37.0

Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages

148.0 ft. lbs., Step 2: 150

148 ft. lbs

Cylinder Head — tightening sequence 6 stages

1	Bolts 1-10	25 ft. lbs
2	Bolts 11-15	15 ft. lbs
3	Bolts 1-10	40 ft. lbs
4	Bolts 11-15	15 ft. lbs
5	Bolts 1-10	90 degrees
6	25.0

Cylinder Head — tightening sequence 1 stages

22.0 ft. lbs. Step 2: 33.0 ft. lbs. Step 3: 75 degrees CAUTION: Do not use a torque wrench for this step. Step 4: 50 degrees CAUTION: Do not use a torque wrench for this step. Step 5: Loosen bolts in reverse sequence Step 6: 22.0 ft. lbs. Step 7: 33.0 ft. lbs. Step 8: 70 degrees CAUTION: Do not use a torque wrench for this step. Step 9: 70 degrees CAUTION: Do not use a torque wrench for this step. Bolts should be checked for stretching using a straight edge. Ay bolts that show stretching should be replaced.

22 ft. lbs

Cylinder Head — tightening sequence 4 stages

Prep Do not reuse old bolts. Coat new bolts with engine oil. Tighten all bolts to finger tight then continue on with the following procedure.

1	22.0 ft. lbs.	22 ft. lbs
2	75 degrees.	75 degrees
3	75 degrees	75 degrees
4	75 degrees	75 degrees

Cylinder Head — tightening sequence 9 stages

1	22 ft. lbs.	22 ft. lbs
2	33 ft. lbs.	33 ft. lbs
3	33 ft. lbs.	33 ft. lbs
4	Turn 125 degrees do not use torque wrench.	125 degrees
5	Loosen all fasteners in reverse order.
6	22 ft. lbs.	22 ft. lbs
7	33 ft. lbs.	33 ft. lbs
8	33 ft. lbs.	33 ft. lbs
9	Turn 130 degrees do not use torque wrench.	130 degrees

Cylinder Head — tightening sequence 4 stages

1	22 ft. lbs.	22 ft. lbs
2	Turn 75 degrees	75 degrees
3	Turn 75 degrees	75 degrees
4	Turn 75

Engine Flywheel Bolts — tightening sequence 1 stages

37 ft. lbs., Step 2: 92 ft. lbs., Step 3: 30

37 ft. lbs

Engine Flywheel Bolts — tightening sequence 4 stages

1	37.0 ft. lbs.	37 ft. lbs
2	Loosen all bolts completely
3	92.0 ft. lbs.	92 ft. lbs
4	33.0

Exhaust Manifold to Cylinder Head Bolts — tightening sequence 2 stages

1	11 ft. lbs.	11 ft. lbs
2	30

Exhaust Manifold to Cylinder Head Bolts — tightening sequence 2 stages

1	11 ft. lbs.	11 ft. lbs
2	30

Main Bearings — tightening sequence 6 stages

1	Using new bolts, install the twenty six M12 bolts (1 - 26) and the three M8 bolts finger tight.
2	Using the tightening shown, tighten all M12 bolts to 33 ft. lbs.	33 ft. lbs
3	Using a torque angle gauge, tight the internal bed plate bolts (1 - 16) an additional 110 degrees.	110 degrees
4	Tight the external bed plate bolts 89 ft. lbs.	89 ft. lbs
5	Tighten the three M8 bolts 22 ft. lbs.	22 ft. lbs
6	Check the torque of the M12 bolts in a counterclockwise direction with the torque wrench set at 85

Main Bearings — tightening sequence 7 stages

Prep Do not reuse old bolts. · Tighten all bolts finger tight before proceeding. · M12 Bolt

1	Bolts 1-16	33 ft. lbs
2	Bolts 1-16	110 degrees
3	Bolts 17-20	18 ft. lbs
4	Bolts 17-20	55 degrees
5	Bolts 21-24	18 ft. lbs
6	Bolts 21-24	75 degrees
7	22.0

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 8,000 mi.

Every 8,000 mi	Engine Oil (drain & refill) · Engine Oil Filter (replace)
Every 10,000 mi	Battery (inspect) · Brake System (inspect) · Diesel Emissions Fluid (fill) · Engine Coolant System (inspect fluid level) · Engine Coolant System Hoses (inspect) · Exhaust System (Complete) (inspect)
Every 16,000 mi	Fuel Filter (replace)
Every 20,000 mi	Fuel Filter (replace) · Parking Brake System (inspect)
Every 100,000 mi	Drive Belt (replace)

Owner how-tos

Condensed service procedures for routine maintenance. Procedures that require dealer diagnostic equipment are identified and summarized only.

Common procedures

Key fob — remote (RKE) programming programming new fob buttons Dealer tool OEM · verified

Tool required	DRBIII scan tool (dealer / locksmith)
Why	Transmitter codes are written into the receiver in the passenger door module

Anti-theft (SKIS) — module initialization after immobilizer module replacement Dealer tool OEM · verified

When needed	After Sentry Key Immobilizer Module (SKIM) replacement
Tool required	DRBIII scan tool
Also required	The vehicle's four-digit PIN code

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The 2018 Grand Cherokee sits in the middle of a generation that has seen a noticeable decline in complaints after a peak in 2014. 2018 registered 840 complaints and 11 recalls, a sharp drop from the 2369 complaints and 19 recalls of 2014, and a modest increase from the 307 complaints and 9 recalls of 2016. The trend shows a gradual improvement in reliability from the high‑complaint years of 2014 to the low‑complaint 2018, with recalls remaining relatively stable. In 2018, the top complaint areas—Electrical System (169), Unknown or Other (163), and Engine (58)—mirror the broader pattern of electrical issues that have been common across the generation, while crash and fire complaints (42 and 10, respectively) are modest compared to earlier years. Overall, the 2018 model year reflects the generation’s improvement trajectory, suggesting it is a comparatively reliable choice, though buyers should still verify specific electrical components.

Open recalls

NHTSA campaigns

442

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

840

Owner complaints

42 involved a crash · 10 a fire

NHTSA crash-test rating federal NCAP · out of 5 stars

Overall★★★★★

Frontal★★★★★

Side★★★★★

Rollover★★★★★

Owner complaints by model year NHTSA · this generation & adjacent

’93 ’94 ’95 ’96 ’97 ’98 ’99 ’00 ’01 ’02 ’03 ’04 ’05 ’06 ’07 ’08 ’09 ’10 ’11 ’12 ’13 ’14 ’15 ’16 ’17’18’19 ’20 ’21 ’22 ’23 ’24 ’25 ’26

Owner complaints filed with NHTSA, by component

All 840 complaints on record, top 8 components.

Electrical System169

Unknown Or Other163

Engine58

Electrical System,Unknown Or Other53

Power Train27

Service Brakes, Hydraulic24

Seats21

Fuel/Propulsion System15

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 11 campaigns on record for this vehicle.

18V280000Power Train:Automatic TransmissionReported 01/05/2018

Chrysler (FCA US LLC) is recalling certain 2018 Dodge Charger, Durango and Challenger, Jeep Grand Cherokee and Wrangler, Chrysler 300, and RAM 1500 vehicles. An incorrect transmission park lock rod may have been… Remedy: Chrysler will notify owners, and dealers will install the correct park lock rod, free of charge. The recall began June 28, 2018. Owners may contact Chrysler customer service at…

18V332000Electrical System:WiringReported 17/05/2018

Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and… Remedy: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June…

Technical service bulletins NHTSA · verified

Showing 5 of 442 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
S2208000045 REV.D	2026-06-26	Structure	Backup Camera Poor Image Quality Inspection
S1623000028 Rev. K	2026-06-12	Electrical System	Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window…
S1623000028 REV.J	2026-06-05	Structure	Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window…
S1623000028 REV.I	2026-05-29	Electrical System	Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window…
S2623000023	2026-04-08	Electrical System	Power Liftgate Inoperative.

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P2002

Diesel particulate filter efficiency below threshold — Bank 1

P0401

Exhaust gas recirculation (EGR) flow insufficient

P20EE

SCR NOx catalyst efficiency below threshold — Bank 1

P0087

Fuel rail / system pressure too low

P0299

Turbocharger / supercharger underboost condition

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN

Decode a VIN to confirm the transmission and build data for a specific Grand Cherokee. OEM

Build data

Plant, GVWR class, engine and body data for any 17-character VIN.

Recalls

Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Group A battery Vehicles taking 8.0 qt WK-platform vehicles Engine oil filter 04884899AC Engine air filter 04861756AA Fuel filter 04726067AB Spark plug SP149212AC

Reference guides

Cross-vehicle references for the kinds of data on this page.

Vehicle recalls & TSBs OBD-II trouble codes Torque specifications Maintenance schedules Fluid capacities & specs

Frequently asked

How much oil does the 2018 Grand Cherokee 3.0L Diesel take?

8.0 qt of Synthetic 5W-40 Meeting Chrysler standard MS-10902 or equivalent., per the factory manual.

Does the 2018 Grand Cherokee have open recalls?

NHTSA lists 11 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the 3.0L Diesel get?

EPA figures are 22 city / 30 highway / 25 combined mpg.