JeepGrand Cherokee20183.6L/jeep/grand-cherokee/2018/3-6l/
WK platform

2018 Jeep Grand Cherokee — 3.6L

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 Grand Cherokee 3.6L.

Body SUVEngine 3.6LTransmission Automatic 8-spd

The 2018 Jeep Grand Cherokee 3.6L is a WK-platform SUV powered by a 3.6-liter engine paired with an eight-speed automatic, carrying EPA ratings of 19/26/21 mpg and specifying 5W-40 engine oil with an 8.0-quart capacity. In the model's 1993-2026 complaint history, the 2018 model accumulated 840 owner complaints and 11 recalls, with the electrical system cited most often. That total sits below the 2014 peak of 2,369 complaints and well above the 2026 low of 9, so researchers should treat this year as a moderately reported model rather than an extreme data point.

Model year201920182017201620152014201320122011

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 economy19/26/21 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 filter04884899AC alt 04892339BE
Engine air filter04861756AA alt 04861688AB
Fuel filter04726067AB alt 04726067AA
Spark plugSP149212AC alt SP143877AB
BatteryBBH7A001AA alt BBAUX101AB
Front wiper blades68194931AB alt 68194930AB
Serpentine belt68207171AD alt 05038725AA
Thermostat52028898AJ alt 68157217AA
Cabin air filter68260792AB alt 68606182AA

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 8-spd

Dimensions & weight NHTSA vPIC

Overall length189.8 in
Overall width76.4 in
Overall height69.3 in
Wheelbase115 in
Curb weight4676 lb
Track (front / rear)63.8 / 64.2 in
Weight distribution (front / rear)51/49

Ratings & economy EPA / vPIC

EPA city / highway / combined19 / 26 / 21 mpg
DrivetrainRear-Wheel Drive
Recommended fuelRegular Gasoline

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.

7.1–9.4 sec0–60 mph (tested)quickest 7.10 sec — 2016 Summit
YearTrim / engine0–60¼ mileHPDrivetrain
2017Trailhawk 3.6L V67.60 sec15.90 sec295 hp4x4
2016Summit 3.6L V67.10 sec15.40 sec295 hp4x4
2021L Limited 3.6L V67.30 sec15.50 sec290 hp4x4
2021L Summit Reserve 3.6L V68.00 sec16.00 sec293 hp4x4
2021L Summit Reserve 3.6L V68.00 sec16.10 sec293 hp4x4
2021L Overland 3.6L V69.40 sec17.10 sec290 hp4x4
2014Overland 3.6L V67.50 sec15.70 sec290 hp4x4
2011Laredo 3.6L V68.20 sec16.40 sec290 hp4x4

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 FluidMopar ZF Automatic transmission fluid
Automatic Transmission Fluid Capacity9.0
Brake FluidDOT 3
Differential Gear OilGL-5 · Synthetic · SAE 75W · SAE 75W · SAE 75W
Engine CoolantMS-12106
Engine Coolant Capacity12.0
Engine CoolantMS-12106
Engine Coolant Capacity10.4

Engine torques

Crankshaft Position (CKP) Sensor Bolt(s)9.0 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)6.6 ft-lbs
Camshaft Bearing/Carrier Cap Bolts or Studs84.0 inch lbs. ft-lbs
Engine Coolant Temperature (ECT) Sensor Bolt(s)22.0 ft-lbs
Oxygen (O2S) Sensor Bolt(s)38.0 ft-lbs
Knock Sense (KS) Bolt(s)16.0 ft-lbs
Engine Flywheel Bolts70.0 ft-lbs
Intake Manifold to Engine Bolts12 ft-lbs

Chassis torques

Lug Nuts110 ft-lbs
Lug NutsOff Road Adventure II Package: 130 ft-lbs
Lug Nuts130 ft-lbs
Lug Nuts110 ft-lbs
Lug Nuts130 ft-lbs
Lug Nuts130 ft-lbs
Front Wheel Hub229.0 Do not re-use old hub nut ft-lbs
Rear Wheel Hub229.0 Do not re-use old hub nut ft-lbs

Ignition

Cylinder Firing Order1-4-2-5-3-6
Cylinder Firing Order1-2-3-4-5-6
Cylinder Firing Order1-8-4-3-6-5-7-2
Spark Plug ManufacturerJeep
Spark Plug Gap.043 in
Spark Plug Torque13 ft-lbs
Spark Plug ManufacturerJeep
Spark Plug Gap.043 in

Battery & A/C

Refrigerant CapacityR134a
Oil GroupPAG
Oil TypeVC46
Oil Capacity4.00 oz
Standard BCI Group NumberAuxiliary for Start Stop: 401
Standard BCI Cranking PerformanceAuxiliary for Start Stop: 200 cca

Service checks

Fuel Pump Pressure Minimum56.0 psi
Fuel Pump Pressure Maximum60.0 psi
Regulated Fuel System Pressure (With Vacuum)56.0-60.0 psi
Fuel Pump Pressure Minimum56.0 psi
Fuel Pump Pressure Maximum60.0 psi
Regulated Fuel System Pressure (With Vacuum)56.0-60.0 psi
Fuel Pump Pressure Minimum56.0 psi
Fuel Pump Pressure Maximum60.0 psi

Brakes

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

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 2 stages
115.0 ft. lbs.15 ft. lbs
290.0
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
130.0 ft. lbs., Step 2: 10530 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
130.0 ft. lbs., Step 2: 10530 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
1148.0 ft. lbs., Step 2: 150148 ft. lbs
Cylinder Head — tightening sequence 6 stages
1Bolts 1-1025 ft. lbs
2Bolts 11-1515 ft. lbs
3Bolts 1-1040 ft. lbs
4Bolts 11-1515 ft. lbs
5Bolts 1-1090 degrees
625.0
Cylinder Head — tightening sequence 1 stages
122.0 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.

122.0 ft. lbs.22 ft. lbs
275 degrees.75 degrees
375 degrees75 degrees
475 degrees75 degrees
Cylinder Head — tightening sequence 9 stages
122 ft. lbs.22 ft. lbs
233 ft. lbs.33 ft. lbs
333 ft. lbs.33 ft. lbs
4Turn 125 degrees do not use torque wrench.125 degrees
5Loosen all fasteners in reverse order.
622 ft. lbs.22 ft. lbs
733 ft. lbs.33 ft. lbs
833 ft. lbs.33 ft. lbs
9Turn 130 degrees do not use torque wrench.130 degrees
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 2 stages
111 ft. lbs.11 ft. lbs
230
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 2 stages
111 ft. lbs.11 ft. lbs
230
Main Bearings — tightening sequence 2 stages

Prep M11 Inner bolts

115.0 ft. lbs.15 ft. lbs
290 degrees; M8 Outer bolts90 degrees
116.0 ft. lbs.16 ft. lbs
290.0 degrees; M8 Side bolts90 degrees
122.0 ft. lbs.22 ft. lbs

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 miEngine Oil (drain & refill) · Engine Oil Filter (replace)
Every 10,000 miBattery (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 miFuel Filter (replace)
Every 20,000 miFuel Filter (replace) · Parking Brake System (inspect)
Every 100,000 miDrive 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 requiredDRBIII scan tool (dealer / locksmith)
WhyTransmitter 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 neededAfter Sentry Key Immobilizer Module (SKIM) replacement
Tool requiredDRBIII scan tool
Also requiredThe 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 federal record shows a sharp rise in complaints from 2011 (1,638) to a peak in 2014 (2,369), followed by a steep decline through 2016 (307) and 2017 (361). In 2018 complaints rose to 840, marking a modest rebound from the low‑point years but remaining well below the 2014 high and comparable to the 2011‑2012 levels. Recall activity in 2018 (11 recalls) is slightly above the 2016‑2017 range (6‑9) and similar to the 2019 figure (7), while investigations held steady at three per year from 2016 through 2019. Thus, 2018 sits in an intermediate phase of the generation’s complaint arc—higher than the immediate post‑low years but lower than the earlier peak period. Given its complaint count is markedly lower than the worst years and its recall/investigation metrics are not elevated relative to surrounding years, the 2018 Jeep Grand Cherokee represents a reasonably reliable option among used models of this generation.

11
Open recalls
NHTSA campaigns
442
Service bulletins
Manufacturer communications
3
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 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.

BulletinDateComponentSummary
S2208000045 REV.D2026-06-26StructureBackup Camera Poor Image Quality Inspection
S1623000028 Rev. K2026-06-12Electrical SystemOutside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window…
S1623000028 REV.J2026-06-05StructureOutside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window…
S1623000028 REV.I2026-05-29Electrical SystemOutside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window…
S26230000232026-04-08Electrical SystemPower 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.

Reference guides

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

Frequently asked

How much oil does the 2018 Grand Cherokee 3.6L 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 3.6L get?

EPA figures are 19 city / 26 highway / 21 combined mpg.