MitsubishiMontero19983.5L/mitsubishi/montero/1998/3-5l/

1998 Mitsubishi Montero — 3.5L

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1998 Montero 3.5L.

Engine 3.5LTransmission Automatic 4-spd

The 1998 Mitsubishi Montero is a 3.5L SUV paired with a 4-speed automatic transmission, returning EPA figures of 14 city, 18 highway, and 16 combined mpg and requiring 5.2 quarts of 10W-30 or 5W-30 API motor oil at service intervals. With 80 owner complaints and 4 recalls on record—suspension issues leading the tally—this model year sits in the moderate range of the Montero's 1990–2006 complaint history, well below the peak of 174 complaints logged in 2002 but far from the low of just 1 in 2005, suggesting a middle-of-the-road reliability profile that researchers should weigh accordingly.

Model year20032000199919981997199619951994

Quick specs

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

Engine oil capacity5.2 qtOEM · verified
Engine oil type10W-30 / 5W-30 APIOEM · verified
Lug nut torque72-87 ft-lbsOEM · verified
EPA fuel economy14/18/16 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 · 490 CCA battery, OE oil filter MD352626. 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 · 490 CCAOEM · verified
Tire size4WD:P225-75R15OEM · verified
Wheel / rim6-JJ inOEM · verified

OE service part numbers OEM · verified

Engine oil filterMD352626
Engine air filterMR571473
Fuel filterMB868452
Spark plugMD361067 alt MS851501
Front wiper bladesMB683949
Serpentine beltMB813344 alt MD186126
ThermostatMD350415

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 4-spd

Ratings & economy EPA / vPIC

EPA city / highway / combined14 / 18 / 16 mpg
Drivetrain4-Wheel or All-Wheel Drive
Recommended fuelRegular Gasoline

Performance & power Independent road tests

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

No 1998 road test on record; the results below are same-engine tests from nearby model years, each shown under its own year.

9.1–11.8 sec0–60 mph (tested)quickest 9.10 sec — 2001 Limited
200 hpHorsepower (as tested)
YearTrim / engine0–60¼ mileHPDrivetrain
1996SR 3.5L V610.50 sec17.80 sec200 hp4x4
1995SR 3.5L V69.90 sec17.40 sec200 hp4x4
2001Limited 3.5L V69.10 sec16.90 sec200 hp4x4
2001Limited 3.5L V610.30 sec17.60 sec200 hp4x4
2001Limited 3.5L V611.80 sec18.60 sec200 hp4x4

Service quick specs OEM factory data

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

This engine holds 5.2 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 72-87 ft-lbs, the oil drain plug to 29.0 ft-lbs. The firing order is 1-2-3-4-5-6.

Lubricants & capacities

Brake FluidDOT 3 · DOT 4
Differential Gear Oil85W-90 · 80W-90
Differential Gear Oil Capacity6.8 Pints,
Engine CoolantETHYLENE GLYCOL
Engine Oil10W-30 · API · 5W-30
Engine Oil Capacity5.2 qt
Power Steering FluidUse Mitsubishi PS fluid

Engine torques

Camshaft Bearing/Carrier Cap Bolts or StudsTighten in 2
Crankshaft Pulley and/or Damper Bolts136 ft-lbs
Engine Flywheel Bolts54 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 Nuts72-87 ft-lbs
Transfer Case Fill Plug22.0-25.0 ft-lbs
Transfer Case Drain Plug22.0-25.0 ft-lbs

Ignition

Cylinder Firing Order1-2-3-4-5-6
Curb Idle Speed (No Load)700 rpm
Curb Idle Speed Variance (No Load)100 rpm
Spark Plug Gap0.039-0.0.043 in
Spark Plug Torque15.0-21.0 ft-lbs
Ignition Timing5, Not adjustable degrees
Ignition Timing Acceptable Variance3 degrees

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.31-1.41 lbs
Oil GroupPAG
Oil Type56
Oil Capacity4.10 oz
Standard BCI Group Number24
Standard BCI Cranking Performance490 cca

Service checks

Pressure Test23 psi
Radiator Cap Pressure Relief11-15 psi
Thermostat Opening Temperature187-193 °F
Engine Compression171-127 PSI. 14 maximum variation PSI.
Engine Compression127-171 psi
Engine Oil Pressure11.4-11.6 psi
Engine Oil Pressure RPMIdle rpm
Intake Valve LashHydraulic in

Brakes

Torque Caliper to Bracket54 ft-lbs
Torque to Knuckle65 ft-lbs
Torque Caliper to Bracket32 ft-lbs
Torque to Knuckle65 ft-lbs
Minimum Pad ThicknessFront: 0.080; Rear: 0.080 in
Minimum Shoe Thickness0.039 in
Rotor Max Parallel Variation0.0006 in
Rotor Runout Limit0.0039 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 7,500 mi; spark plugs every 60,000 mi.

Every 7,500 miBrake Hydraulic System (inspect fluid level) · Clutch Master Cylinder (inspect fluid level) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Power Steering System (inspect)
Every 15,000 miAxle Shaft Oil Seal (inspect) · Brake Linings (inspect) · CV Joint Boot (inspect)
Every 30,000 miAccessory Drive Belt (inspect) · Brake System (inspect) · Differential (inspect fluid level) · Drive Axle Assembly (drain & refill) · Driveshaft U-Joint (inspect) · Engine Air Filter Element (replace)
Every 60,000 miFuel Evaporative Emission Control System (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect) · Spark Plug Wires (replace) · Spark 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 1998 Mitsubishi Montero sits near the peak of a volatile complaint arc for this generation, recording 80 complaints alongside 4 recalls and 1 investigation, which closely mirrors the elevated figures of the 1997 model year (98 complaints, 4 recalls). While this represents a slight decrease from 1997, it remains significantly higher than the subsequent 1999 model year (40 complaints, 2 recalls) and the early generation years, indicating that unresolved issues persisted into 1998. For the target year specifically, suspension concerns dominate the federal record with 16 complaints, followed by engine/cooling and hydraulic brakes with 8 each, and structure issues at 6, though the data does not specify root causes for these failures. Additionally, the 1998 model logged 10 crash complaints and zero fire complaints. Given its position at the tail end of a high-complaint plateau before a notable improvement in 1999, the 1998 Montero is not the most favorable year to purchase; a prospective buyer would be better served seeking a 1999 model with half the complaint volume and fewer recalls.

4
Open recalls
NHTSA campaigns
42
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
80
Owner complaints
10 involved a crash · 0 a fire
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 80 complaints on record, top 8 components.

Suspension16
Engine & Engine Cooling8
Service Brakes, Hydraulic8
Structure6
Air Bags4
Visibility4
Unknown Or Other4
Vehicle Speed Control3

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 4 campaigns on record for this vehicle.

04V428000Equipment:Other:LabelsReported 01/09/2004

CERTAIN PASSENGER VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 208, 'OCCUPANT CRASH PROTECTION.' THE BILINGUAL ENGLISH/SPANISH REMOVABLE AIR BAG WARNING LABELS AFFIXED TO THE… Remedy: MITSUBISHI CARIBBEAN WILL MAIL A CUSTOMER NOTIFICATION LETTER CONTAINING A WRITTEN DESCRIPTION AND A GRAPHIC OF THE BI-LINGUAL DASHBOARD AIR BAG WARNING LABEL. IN ADDITION, ALL…

98V205000Unknown Or OtherReported 02/09/1998

VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH ACCESSORY CARGO MATS IN THE THIRD-SEAT AND CARGO AREA. THIS CARGO MAT INTERFERES WITH THE LATCHING INTEGRITY OF THE FOLDING THIRD SEATS. Remedy: DEALERS WILL INSPECT THE THIRD-SEAT LATCH AND STRIKER. A RECTANGLE WILL BE REMOVED FROM THE CARGO MAT AROUND EACH STRIKER TO PROVIDE ADEQUATE STRIKER CLEARANCE AND PROPER LATCHING.

Technical service bulletins NHTSA · verified

Showing 5 of 42 bulletins on record with NHTSA.

BulletinDateComponentSummary
SR-20-001REV32023-06-23Air BagsThis is a revised Safety Recall bulletin sent to dealers informing them of new Takata…
TSB-22-54-0032022-04-07Exterior LightingThis Technical Service Bulletin was sent to dealers to explain the difference between…
TT2532019-11-26EquipmentThis is a service newsletter (Tech Talk) that was sent out to dealers.
TSB-19-00-0082019-07-30EquipmentThis is a Technical Service Bulletin sent to dealers. This bulletin supersedes…
TT2372018-02-26EquipmentThis is a service newsletter (Tech Talk) that was sent out to dealers.

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

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VIN
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Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
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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 1998 Montero 3.5L take?

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

Does the 1998 Montero have open recalls?

NHTSA lists 4 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the 3.5L get?

EPA figures are 14 city / 18 highway / 16 combined mpg.