MitsubishiEndeavor20063.8L/mitsubishi/endeavor/2006/3-8l/

2006 Mitsubishi Endeavor — 3.8L

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2006 Endeavor 3.8L.

Body SUVEngine 3.8LTransmission Automatic (S4)

The 2006 Mitsubishi Endeavor is an SUV powered by a 3.8-liter engine paired with an Automatic (S4), requiring 4.6 quarts of 10W-30 or 5W-30 API oil and carrying EPA estimates of 16 mpg city and 21 mpg highway. With only 19 total owner complaints on record, this model year represents a significant improvement over the 2004 debut, which accumulated 181 complaints. Concentrated primarily in the electrical system and accompanied by five recalls, these issues place the 2006 model well above the 2011 finale's seven-complaint low, positioning it in the middle of the Endeavor's 2004–2011 production timeline.

Model year20112010200920082007200620052004

Quick specs

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

Engine oil capacity4.6 qtOEM · verified
Engine oil type10W-30 / 5W-30 APIOEM · verified
Lug nut torque65-80 ft-lbsOEM · verified
EPA fuel economy16/21/18 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 24 · 550 CCA battery, OE oil filter MZ690072. 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 24 · 550 CCAOEM · verified
Tire size4WD:P225-75R15OEM · verified
Wheel / rim6-JJ inOEM · verified

OE service part numbers OEM · verified

Engine oil filterMZ690072
Engine air filterMR571396
Fuel filterMN176269
Spark plugMN163236
Front wiper bladesMZ693021 alt 8250A174
Serpentine beltMN187016 alt MN187015
ThermostatMD350415

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S4)

Dimensions & weight NHTSA vPIC

Overall length190.9 in
Overall width73.6 in
Overall height67.3 in
Wheelbase107.9 in
Curb weight4156 lb
Track (front / rear)63 / 59.4 in
Weight distribution (front / rear)55/45

Ratings & economy EPA / vPIC

EPA city / highway / combined16 / 21 / 18 mpg
DrivetrainFront-Wheel Drive
Recommended fuelPremium Gasoline

Performance & power Independent road tests

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

No 2006 road test on record; the results below are same-engine tests from nearby model years, each shown under its own year.

7.6–8.4 sec0–60 mph (tested)quickest 7.60 sec — 2004 Limited
215 hpHorsepower (as tested)
250 lb-ftTorque (as tested)
YearTrim / engine0–60¼ mileHPDrivetrain
2004Limited 3.8L V67.60 sec16.20 sec215 hpAWD
2004Limited 3.8L V67.70 sec16.10 sec215 hpAWD
2004XLS 3.8L V68.40 sec16.20 sec215 hpAWD

Service quick specs OEM factory data

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

This engine holds 4.6 qt of 10W-30 / 5W-30 API engine oil, 85W-90 · 80W-90 in the differential, DOT 3 · DOT 4 brake fluid. Torque lug nuts to 65-80 ft-lbs, the oil drain plug to 29.0 ft-lbs. The firing order is 1-2-3-4-5-6.

Lubricants & capacities

Automatic Transmission FluidMitsubishi Diamond Queen SP-III
Automatic Transmission Fluid Capacity9.3
Automatic Transmission FluidMitsubishi Diamond Queen SP-III
Automatic Transmission Fluid Capacity8.9
Brake FluidDOT 3 · DOT 4
Differential Gear Oil85W-90 · 80W-90
Differential Gear Oil Capacity2.3 Pints
Engine Oil10W-30 · API · 5W-30

Engine torques

Crankshaft Pulley and/or Damper Bolts134-140 ft-lbs
Engine Flywheel Bolts54 ft-lbs
Intake Manifold to Engine Bolts16 ft-lbs
Exhaust Manifold to Cylinder Head Bolts33 ft-lbs
Main Bearings54 ft-lbs
Engine Oil Pan Drain Plug29.0 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs10 ft-lbs

Chassis torques

Lug Nuts65-80 ft-lbs
Front Wheel Hub145-188 ft-lbs
Rear Wheel Hub145-188 ft-lbs

Ignition

Cylinder Firing Order1-2-3-4-5-6
Spark Plug Gap0.028-0.031 in
Spark Plug Torque15.0-21.0 ft-lbs

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.06-1.15 lbs
Oil GroupPAG
Oil Type46
Oil Capacity2.0 L
Standard BCI Group Number24
Standard BCI Cranking Performance550 cca

Service checks

Pressure Test23 psi
Radiator Cap Pressure Relief14-18 psi
Thermostat Opening Temperature187-193 °F
Engine Compression162
Engine Oil Pressure4.3 psi @ Idle, 43-100 psi @ 3500 rpm psi
Intake Valve LashHydraulic in
Exhaust Valve LashHydraulic in

Brakes

Torque Caliper to Bracket32 ft-lbs
Torque to Knuckle74 ft-lbs / 45 ft-lbs
Minimum Pad ThicknessFront: 0.080; Rear: 0.080 in
Minimum Shoe Thickness0.039 in
Rotor Max Parallel Variation0.0006 in
Rotor Runout Limit0.0012 in / 0.0031 in
Rotor Nominal Thickness From1.024 in / 0.394 in
Rotor Nominal Thickness To1.024 in / 0.394 in

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 1 stages
120 ft. lbs., Step 2: 90-9420 ft. lbs
Cylinder Head — tightening sequence 3 stages
180 ft. lbs.80 ft. lbs
2Loosen all bolts.
380

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 7,500 mi; spark plugs every 100,000 mi; coolant every 30,000 mi. The big-interval services (every 30,000 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 7,500 miEngine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 15,000 miCabin Air Filter (replace)
Every 20,000 miBrake Line (inspect) · Brake Linings (inspect) · CV Joint Boot (inspect) · Driveshaft (inspect)
Every 30,000 miAccessory Drive Belt (inspect) · Brake Drum Assembly (inspect) · Differential (inspect fluid level) · Engine Air Filter Element (replace) · Engine Coolant System (drain, flush & refill) · Engine Coolant System Hoses (inspect)
At 60,000 miEngine Coolant System (drain, flush & refill)
Every 60,000 miFuel Evaporative Emission Control System (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect) · Transfer Case Assembly (drain & refill)
Every 100,000 miSpark Plugs (replace) · Timing Belt (replace)

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 2006 Mitsubishi Endeavor sits at a key inflection point in this generation's federal record. Complaints plummeted from 181 in the 2004 launch year to 39 in 2005 and then to just 19 in 2006, marking the steepest part of a downward arc that continued through the model's end in 2011. TSBs followed a similar trajectory, dropping from 116 in 2004 to 61 in 2005 and then to their generational low of 28 in 2006, suggesting Mitsubishi had largely worked through the early-production teething issues. However, recalls remained elevated at 5 — the same count as 2007 and only one fewer than 2005 — indicating that while day-to-day reliability complaints were fading, safety-related defect campaigns had not yet subsided. The 2006's top complaint areas were the Electrical System (4 complaints), Fuel/Propulsion System (3), Structure (2), and Power Train (2), with 3 crash complaints and 1 fire complaint in the federal record; the data does not specify root causes for these. Given that 2006 represents the low-water mark for both complaints and TSBs across the entire generation while still carrying a meaningful recall count, it is a solid year to buy — provided you verify that all five recalls have been performed on the specific vehicle.

5
Open recalls
NHTSA campaigns
28
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
19
Owner complaints
3 involved a crash · 1 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Rollover★★★★★
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 19 complaints on record, top 8 components.

Electrical System4
Fuel/Propulsion System3
Structure2
Power Train2
Fuel System, Gasoline1
Unknown Or Other,Fuel/Propulsion System,Visibility/Wiper1
Vehicle Speed Control,Unknown Or Other,Service Brakes1
Unknown Or Other1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 5 campaigns on record for this vehicle.

08V454000Fuel System, Gasoline:Storage:Tank AssemblyReported 09/09/2008

MITSUBISHI IS RECALLING 45,988 MY 2005-2007 ENDEAVOR, GALANT, ECLIPSE COUPE, AND MY 2007 ECLIPSE SPYDER VEHICLES. THE BRACKET THAT IS THE ATTACHMENT POINT FOR THE LEFT REAR FUEL TANK MOUNTING STRAP MAY HAVE BEEN… Remedy: DEALERS WILL INSPECT TO SEE IF THE LEFT REAR FUEL TANK STRAP MOUNTING BRACKET HAS SPLITTING BEYOND A SPECIFIC LIMIT. VEHICLES WITH MODERATE TO SEVERE SPLITTING WILL BE REPAIRED…

08V022000Seat Belts:FrontReported 18/01/2008

ON CERTAIN PASSENGER VEHICLES, THE RIGHT SIDE LOWER SEAT BELT ANCHOR MAY SEPARATE DURING A SEVERE VEHICLE CRASH. Remedy: DEALERS WILL REPLACE THE FRONT PASSENGER SIDE SEAT BELT AND BRACKET ASSEMBLY FREE OF CHARGE. THE RECALL BEGAN ON MARCH 17, 2008. OWNERS MAY CONTACT MITSUBISHI AT 1-800-222-0037.

Technical service bulletins NHTSA · verified

Showing 5 of 28 bulletins on record with NHTSA.

BulletinDateComponentSummary
DEALER LETTER2023-07-21EquipmentThis is a Dealer Letter sent to dealers informing that Mitsubishi Technical Training has…
TSB-23-00-0042023-04-24StructureThis Technical Service Bulletin provides instructions and material safety data sheets for…
TSB-23-00-0012023-04-24EquipmentThis Technical Service Bulletin reviews the regulations that require a label showing the…
DEALER LETTER2023-04-21EquipmentThis is a Dealer Letter sent to dealers informing that Mitsubishi Technical Training has…
TSB-22-54-0032022-04-07Exterior LightingThis Technical Service Bulletin was sent to dealers to explain the difference between…

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 Endeavor. 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 2006 Endeavor 3.8L take?

4.6 qt of ABOVE 0 degreesF 10W-30 SL API, BELOW 100 degreesF 5W-30 SL API, per the factory manual.

Does the 2006 Endeavor have open recalls?

NHTSA lists 5 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the 3.8L get?

EPA figures are 16 city / 21 highway / 18 combined mpg.