Jeep›Grand Cherokee›2018›6.4L/jeep/grand-cherokee/2018/6-4l/

WK platform

2018 Jeep Grand Cherokee — 6.4L

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 Grand Cherokee 6.4L.

Body SUVEngine 6.4L

Built on the WK platform, the 2018 Jeep Grand Cherokee with the 6.4L engine is an SUV specified with an 8.0-quart engine oil capacity at 5W-40 viscosity. Across its production run, the model year has accumulated 840 owner complaints, with the electrical system standing as the most-cited trouble area and 11 recalls issued for the vehicle. Set against the Grand Cherokee's 1993–2026 complaint history, the 2018 sits well below the line's all-time peak of 2,369 complaints logged in 2014, placing it among the quieter entries in a reliability curve that stretches from that high down to just 9 complaints in 2026.

Model year2019 2018 2017 2016 2015 2014 2013 2012

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

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.

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

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.

4.4–5.0 sec0–60 mph (tested)quickest 4.40 sec — 2017 SRT

Year	Trim / engine	0–60	¼ mile	HP	Drivetrain
2017	SRT 6.4L V8	4.40 sec	13.00 sec	475 hp	4x4
2014	SRT 6.4L V8	4.60 sec	13.20 sec	470 hp	4x4
2012	SRT8 6.4L V8	4.60 sec	13.30 sec	470 hp	4x4
2012	SRT8 6.4L V8	4.70 sec	13.40 sec	470 hp	4x4
2012	SRT8 6.4L V8	5.00 sec	13.70 sec	470 hp	4x4
2012	SRT8 6.4L V8	5.00 sec	13.50 sec	470 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)	9.0 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)	9.0 ft-lbs
Camshaft Sprocket and/or Gear Bolt(s)	90.0 ft-lbs
Crankshaft Pulley and/or Damper Bolts	136.0 ft-lbs
Engine Coolant Temperature (ECT) Sensor Bolt(s)	20.0 ft-lbs
Oxygen (O2S) Sensor Bolt(s)	38.0 ft-lbs
Knock Sense (KS) Bolt(s)	15.0 ft-lbs
Engine Flywheel Bolts	70.0 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	7.5 - 15 ft-lbs
Spark Plug Manufacturer	Jeep
Spark Plug Gap	.043 in

Battery & A/C

Refrigerant Capacity	R134a
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
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
Injector Primary Resistance	11.4-12.6 @ 68 degreesF ohms
Engine Compression	100

Brakes

Brake Caliper Bolt to Carrier Torque	Front: 24; 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
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

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 2 stages

1	30.0 ft. lbs.	30 ft. lbs
2	90.0

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

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 3 stages

Prep Inner bolts

1	10.0 ft. lbs.	10 ft. lbs
2	21.0 ft. lbs.	21 ft. lbs
3	90.0 degrees; Outer bolts	90 degrees
1	25.0

Oil Pan to Block Bolts — tightening sequence 1 stages

M6 Bolts

44 in

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 6,000 mi.

Every 6,000 mi	Brake Line (inspect) · Engine Oil (drain & refill) · Tire & Wheel Assembly (rotate)
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 12,000 mi	Brake Linings (inspect) · CV Joint Boot (inspect) · Exhaust System (Complete) (inspect) · Suspension System (inspect) · Tie Rod (inspect)
Every 16,000 mi	Fuel Filter (replace)
Every 20,000 mi	Fuel Filter (replace) · Parking Brake System (inspect)
Every 24,000 mi	Cabin Air Filter (replace) · Differential (inspect fluid level)
Every 30,000 mi	Engine Air Filter Element (replace)
Every 60,000 mi	Accessory Drive Belt (inspect)

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.

In the 2018 model year the Grand Cherokee recorded 840 consumer complaints, 11 recalls, 3 NHTSA investigations, and 442 technical service bulletins (TSBs). Compared with the surrounding years, complaints rose sharply from 361 in 2017 to 840 in 2018, then fell back to 356 in 2019, while recalls increased modestly from 6 (2017) to 11 (2018) before dropping to 7 (2019). The TS‑B count also peaked in 2018 (442) after a steady climb from 350 in 2017, indicating a concentration of service‑related issues that year. Across the generation, the data show a long‑term decline in complaints from the mid‑2000s high‑point (e.g., 2369 in 2014) to low single‑digit numbers by 2026, with recall activity generally hovering in the single‑digit to low‑teens and investigations remaining few. Because 2018 sits at a relative high in complaints and TSBs within an otherwise improving trend, a buyer should be cautious and verify that any open recalls or service actions have been resolved; otherwise the year is not the strongest choice for a low‑risk purchase.

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.

P0420

Catalyst system efficiency below threshold — Bank 1

P0300

Random / multiple cylinder misfire detected

P0171

System too lean — Bank 1

P0455

Evaporative emission system leak detected — large leak

P0128

Coolant thermostat below regulating temperature

P0442

Evaporative emission system leak detected — small leak

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 6.4L 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.