JeepCompass, Patriot20082.0L Diesel/jeep/compass-patriot/2008/2-0l-diesel/
MK platform

2008 Jeep Compass, Patriot — 2.0L Diesel

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2008 Compass, Patriot 2.0L Diesel. Covers both the standard and High Output 2.0L Diesel.

Body SUVEngine 2.0L DieselTransmission Automatic (variable gear ratios)

The 2008 Jeep Compass and Patriot pair practicality with efficiency, offering a compact SUV built on the MK platform and powered by a 2.0L diesel engine mated to an automatic transmission with variable gear ratios—delivering a combined EPA-estimated 24 mpg, a standout figure for its class at the time. With a modest 4.5-quart oil capacity requiring 5W-20 or 5W-30 viscosity, this model year reflects Jeep’s push toward fuel-conscious engineering, though its reliability narrative is nuanced. Garnering 172 owner complaints, predominantly tied to suspension issues, and a single recall, the 2008 iteration sits as an early chapter in the Compass and Patriot’s evolution, marking a period where durability concerns tempered its otherwise pragmatic appeal.

Model year200920082007

Quick specs

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

Engine oil capacity4.5 qt w/ filterOEM · verified
Engine oil type5W-20 / 5W-30 APIOEM · verified
Lug nut torque100 ft-lbsOEM · verified
EPA fuel economy23/27/24 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 86 · 525 CCA battery, OE oil filter 04892339BE. Note the factory engine air filter and front wiper blades are now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. 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 86 · 525 CCAOEM · verified
Tail / brake / turnTURNOEM · verified
Tire sizeP205-70R16OEM · verified
Wheel / rim6.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter04892339BE
Engine air filter04891694AA discontinued
Spark plugSP0ZFR5F11
BatteryBB34A901AA alt 56041380AF
Front wiper blades68002029AA discontinued · alt 68002028AA
Thermostat55111017AB alt 55111016AC
Cabin air filter05058693AA

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (variable gear ratios)

Ratings & economy EPA / vPIC

EPA city / highway / combined23 / 27 / 24 mpg
DrivetrainFront-Wheel Drive
Recommended fuelRegular Gasoline

Service quick specs OEM factory data

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

This engine holds 4.5 qt w/ filter of 5W-20 / 5W-30 API engine oil, 80W-90 · GL-5 in the differential. Torque lug nuts to 100 ft-lbs. The firing order is 1-3-4-2. 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

Differential Gear Oil80W-90 · GL-5
Differential Gear Oil Capacity1.1 Pints
Engine CoolantHOAT · MS9769
Engine Oil5W-20 · 5W-30 · API · MS-6395
Engine Oil Capacity4.5 qt w/ filter
Power Steering FluidATF +4

Engine torques

Camshaft Bearing/Carrier Cap Bolts or StudsM8 Bolts: 22 ft-lbs, M6 Bolts: 9 ft-lbs
Crankshaft Pulley and/or Damper Bolts155 ft-lbs
Crankshaft Pulley and/or Damper Bolts129 ft-lbs
Intake Manifold to Engine Bolts18 ft-lbs
Exhaust Manifold to Cylinder Head Bolts25 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs180MM

Chassis torques

Lug Nuts100 ft-lbs
Front Wheel Hub180 ft-lbs

Ignition

Cylinder Firing Order1-3-4-2
Spark Plug ManufacturerNGK
Spark Plug TypeZFR5F-11
Spark Plug Gap0.043 in
Spark Plug Torque20 ft-lbs

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.31 lbs
Oil GroupPAG
Oil Type46
Oil Capacity3.40 oz
Standard BCI Group Number86
Standard BCI Cranking Performance525 cca

Service checks

Pressure Test15, Pressure should not exceed 20 psi.
Radiator Cap Pressure Relief14-18 psi
Thermostat Opening Temperature179 °F
Regulated Fuel System Pressure (With Vacuum)53-63 psi
Injector Primary Resistance11.4-12.6 @ 68 degreesF ohms
Engine Compression170-225 psi
Engine Oil Pressure4-6 psi at Idle, 25-80 @ 3000 psi
Intake Valve LashHydraulic in

Brakes

Torque Caliper to Bracket32 ft-lbs
Torque to Knuckle52 ft-lbs / 80 ft-lbs
Minimum Pad Thickness0.040 in
Minimum Shoe Thickness0.040 in
Rotor Max Parallel Variation0.0006 in / 0.0002 in
Rotor Runout Limit0.0024 in / 0.0016 in / 0.004 in
Rotor Nominal Thickness From0.386 in / 1.02 in
Rotor Nominal Thickness To0.402 in / 1.028 in

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 1 stages
115 ft. lbs., Step 2: 9015 ft. lbs
Cylinder Head — tightening sequence 4 stages

Prep Bolts should be checked for stretching using a straight edge. Ay bolts that show stretching should be replaced. · If your bolt has the short head, use the following torque specifications:

125 ft. lbs.25 ft. lbs
254 ft. lbs.54 ft. lbs
354 ft. lbs.54 ft. lbs
490 degreesCAUTION:Do not use a torque wrench for the Fourth step.; If your bolt has the long head, use the following torque specifications:; The front two cylinder head bolts require washers to be installed with the beveled edge facing up. Do not reuse old bolts. Lubricate bolts with clean engine oil90 degrees
145 ft. lbs.45 ft. lbs
245 ft. lbs.45 ft. lbs
390 degreesCAUTION:Do not use a torque wrench for the Fourth step.90 degrees
Engine Flywheel Bolts — tightening sequence 1 stages
122 ft. lbs., Step 2: 5122 ft. lbs
Main Bearings — tightening sequence 1 stages

Prep Bolts stamped with the letter B or the number 6 use the following torque procedure.

111 ft. lbs., Step 2: 20 ft. lbs., Step 3: 45 degrees; Bolts that are not stamped with the letter B or the number 6 use the following torque procedure.11 ft. lbs
111 ft. lbs., Step 2: 33 ft. lbs., Step 3: 45 degrees11 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 6,000 mi; spark plugs every 30,000 mi; coolant at 102,000 mi. The big-interval services (at 102,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 6,000 miBrake Line (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
At 12,000 miCV Joint Boot (inspect) · Exhaust System (Complete) (inspect)
Every 12,000 miBrake Linings (inspect) · Cabin Air Filter (replace)
Every 24,000 miCV Joint Boot (inspect) · Exhaust System (Complete) (inspect) · Steering Linkage (inspect) · Suspension System (inspect)
Every 30,000 miEngine Air Filter Element (replace) · Spark Plugs (replace)
Every 60,000 miDrive Axle Assembly (drain & refill) · Transfer Case Assembly (drain & refill)
Every 90,000 miPCV Valve (inspect)
At 102,000 miEngine Coolant System (drain, flush & refill)
At 120,000 miDrive Belt (replace) · Transmission Fluid & Filter (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.

Owner complaints about the 2008 Jeep Compass, Patriot top in one area — the suspension, 30 of 172 reports (17%), well ahead of the next concern. NHTSA has issued no recalls for this vehicle, so these are owner-reported concerns only. 3 of the reports describe a crash and 4 a fire — a small share of the total, but worth weighing against the suspension pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.

1
Open recalls
NHTSA campaigns
63
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
172
Owner complaints
3 involved a crash · 4 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Rollover★★★★

Owner complaints filed with NHTSA, by component

All 172 complaints on record, top 8 components.

Suspension30
Structure29
Fuel/Propulsion System15
Steering,Suspension10
Power Train8
Unknown Or Other8
Air Bags6
Suspension,Structure6

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.

Technical service bulletins NHTSA · verified

Showing 5 of 63 bulletins on record with NHTSA.

BulletinDateComponentSummary
91006452025-08-15Unknown Or OtherVerify Reman part number availability. Order the "R" part number for all orders…
91006532025-08-15Unknown Or OtherVerify Reman part number availability. Order the "R" part number for all orders…
1039542025-04-02Unknown Or OtherACTUATOR - A/C AND HEATER
1040872025-04-02Unknown Or OtherACTUATOR - A/C AND HEATER
91002262023-09-15Electrical SystemConnector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar…

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 Compass, Patriot. 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 2008 Compass, Patriot 2.0L Diesel take?

4.5 qt w/ filter of 5W-20 OR 5W-30 API MEETING CHRYSLER SPECIFICATION MS-6395, per the factory manual.

Does the 2008 Compass, Patriot have open recalls?

NHTSA lists 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the 2.0L Diesel get?

EPA figures are 23 city / 27 highway / 24 combined mpg.