SubaruOutback1998Overview/subaru/outback/1998/base/

1998 Subaru Outback

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

The 1998 Subaru Outback is characterized by 5W-30 API oil viscosity and a 4.2 qt engine oil specification. Within the model's complaint history spanning 1995 to 2026, this vintage registered 141 total owner complaints and 2 recalls, with Engine & Engine Cooling emerging as the top complaint area. While the 1995 model year represents the lowest recorded activity at 2 complaints and 2019 marks the highest at 1029, the 1998 data positions this year significantly closer to the lineage's minimum than its peak volume of issues.

Model year202520242023202220212020201920181998

Quick specs

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

Engine oil capacity4.2 qtOEM · verified
Engine oil type5W-30 APIOEM · verified
Lug nut torque58-72 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 35 · 490 CCA battery. 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 35 · 490 CCAOEM · verified
Tail / brake / turnTURNOEM · verified

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length185.8 in
Overall width67.7 in
Overall height63 in
Wheelbase103.5 in
Curb weight3155 lb
Track (front / rear)57.5 / 57.5 in

Performance & power Independent road tests

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

Independent road tests for the Outback of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

6.8–8.8 sec0–60 mph (tested)quickest 6.80 sec — 2005 2.5XT Limited
YearTrim / engine0–60¼ mileHPDrivetrain
2001H6-3.0 VDC 3.0L F-68.30 sec16.30 sec212 hpAWD
2001H6-3.0 VDC 3.0L F-68.80 sec16.60 sec212 hpAWD
2001H6-3.0 VDC 3.0L F-68.80 sec16.80 sec212 hpAWD
20052.5XT Limited 2.5L Turbo F-46.80 sec15.20 sec250 hpAWD
20052.5XT Limited 2.5L Turbo F-47.10 sec15.60 sec250 hpAWD

Service quick specs OEM factory data

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

This engine holds 4.2 qt of 5W-30 API engine oil, 75W-90 · 80W-90 · GL-5 in the differential, DOT 3 brake fluid. Torque lug nuts to 58-72 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

Brake FluidDOT 3
Differential Gear Oil75W-90 · 80W-90 · GL-5
Differential Gear Oil Capacity1.6 Pints
Engine CoolantETHYLENE GLYCOL
Engine Oil5W-30 · API
Engine Oil Capacity4.2 qt
Engine Oil5W-30 · API
Engine Oil Capacity4.2 qt

Engine torques

Connecting Rod (Large End) Bearings33 ft-lbs
Connecting Rod (Large End) Bearings33 ft-lbs
Crankshaft Pulley and/or Damper Bolts87-101 ft-lbs
Crankshaft Pulley and/or Damper Bolts123-137 ft-lbs
Engine Flywheel Bolts53 ft-lbs
Engine Flywheel Bolts53 ft-lbs
Intake Manifold to Engine Bolts18.1 ft-lbs
Exhaust Manifold to Cylinder Head Bolts22.4 ft-lbs

Chassis torques

Lug Nuts58-72 ft-lbs
Transfer Case Drain Plug17.0-20.0 ft-lbs
Front Wheel Hub123-151 ft-lbs
Rear Wheel Hub137 ft-lbs

Ignition

Cylinder Firing Order1-3-4-2
Curb Idle Speed (No Load)700 rpm
Curb Idle Speed Variance (No Load)100 rpm
Curb Idle Speed (No Load)700 rpm
Curb Idle Speed Variance (No Load)100 rpm
Ignition Coil Primary Resistance0.6-0.8 ohms
Ignition Coil Secondary Resistance10,880-14,720 ohms
Ignition Coil Primary Resistance.66-.80 ohms

Battery & A/C

RefrigerantR134a
Refrigerant Capacity0.88-1.65 lbs
Oil GroupPAG
Oil Capacity4.50-5.50 oz
Standard BCI Group Number35
Standard BCI Cranking Performance490 cca
Standard BCI Group Number85
Standard BCI Cranking Performance430 cca

Service checks

Pressure Test23 psi
Radiator Cap Pressure Relief11-15 psi
Thermostat Opening Temperature169-176 °F
Pressure Test23 psi
Radiator Cap Pressure Relief11-15 psi
Thermostat Opening Temperature169-176 °F
Injector Primary Resistance5-20 ohms
Injector Primary Resistance5-20 ohms

Brakes

Minimum Pad ThicknessFront: 0.295; Rear: 0.256 specification
Vented Rotor Minimum Thickness for ReplacementFront: .866; Rear: .630
Maximum Rotor RunoutFront: .0028; Rear: .0029
Maximum Drum DiameterFront: 9.079; Parking Brake: 6.732

Multi-step torque procedures OEM · verified

Cylinder Head — tightening sequence 8 stages
122 ft. lbs.22 ft. lbs
251 ft. lbs.51 ft. lbs
3Loosen 180 degrees.180 degrees
4Loosen 180 degrees.180 degrees
5Bolts 1-225 ft. lbs
6Bolts 3-611 ft. lbs
790 degrees.90 degrees
890 degrees.90 degrees
Cylinder Head — tightening sequence 8 stages
122 ft. lbs.22 ft. lbs
251 ft. lbs.51 ft. lbs
3Loosen 180 degrees.180 degrees
4Loosen 180 degrees.180 degrees
5Bolts 1-225 ft. lbs
6Bolts 3-611 ft. lbs
780-90 degrees.80–90 degrees
880-90 degrees.80–90 degrees

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter at 3,000 mi.

At 3,000 miEngine Oil (drain & refill) · Engine Oil Filter (replace)
Every 7,500 miEngine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 15,000 miBody Latches, Locks & Hinges (inspect) · Brake System (inspect) · Clutch Assembly (inspect) · Clutch Master Cylinder (inspect fluid level) · Engine Coolant System (leak inspection) · Hill Holder System (inspect)
Every 30,000 miBrake Drum Assembly (inspect) · Brake Hydraulic System (drain, refill & bleed) · Differential (inspect fluid level) · Engine Air Filter Element (replace) · Engine Breather Filter (replace) · Fuel Filter (replace)
Every 60,000 miAccessory Drive Belt (inspect) · Wheel Bearing (inspect)
At 105,000 miDrive Belt (replace) · Engine Valves (inspect valve lash) · 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 Subaru Outback marks a notable inflection point in its generation, with complaints spiking to 141—nearly double the 1997 total and the highest figure until 2000. This surge aligns with early reports of engine and powertrain issues, which dominate the complaint profile (40 and 17 reports, respectively), while recalls remained modest at two, consistent with the prior year. Compared to 1997’s four recalls and 1999’s single recall, the 1998 model sits in a phase where reliability concerns were escalating but formal corrective actions had not yet expanded. The data doesn’t specify root causes, but the trend suggests unresolved design or assembly flaws were becoming more apparent. Crash-related complaints (9) and fire reports (2) are present but not disproportionately high for the era. **Takeaway:** The 1998 Outback is a riskier choice within its generation, as it reflects the peak of early reliability complaints without the benefit of later recall campaigns or TSB refinements. Buyers should prioritize meticulous service records and pre-purchase inspections.

2
Open recalls
NHTSA campaigns
16
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
141
Owner complaints
9 involved a crash · 2 a fire

Owner complaints filed with NHTSA, by component

All 141 complaints on record, top 8 components.

Engine & Engine Cooling40
Power Train17
Air Bags9
Vehicle Speed Control8
Visibility7
Service Brakes, Hydraulic7
Electrical System6
Latches/Locks/Linkages4

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 2 campaigns on record for this vehicle.

01V216000Suspension:Front:Springs:Coil SpringsReported 25/06/2001

VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH FRONT COIL SPRINGS ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, KENTUCKY, MAINE, MARYLAND… Remedy: DEALERS WILL NOTIFIY CUSTOMERS TO BRING THEIR VEHICLE TO AN AUTHORIZE DEALERSHIP TO HAVE A SPRING GUARD INSTALLED ON BOTH FRONT STRUTS TO PREVENT TIRE PUNCTURE AND REPLACE ANY…

98V042000Power Train:Automatic Transmission:Gear Position Indication (Prndl)Reported 20/02/1998

VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH AUTOMATIC TRANSMISSIONS. DUE TO POOR WELDS, IGNITION KEYS CAN STICK, SHIFT LEVERS/LINKAGES CAN BREAK AND SHIFT LEVERS CAN MOVE. Remedy: DEALERS WILL REPLACE THE AUTOMATIC TRANSMISSION SHIFT LEVER ASSEMBLIES (EXCEPT THE HANDLE GRIP).

Technical service bulletins NHTSA · verified

Showing 5 of 16 bulletins on record with NHTSA.

BulletinDateComponentSummary
12-249-23R2023-07-11EquipmentThis bulletin announces the recommended cleaning procedures to followed when encountering…
15-302-222022-08-23EquipmentThis bulletin contains illustrations of exchange components and their manufacturer as…
01-167-08R2022-08-23EquipmentThis bulletin contains additional information for recommended materials listed in the…
15-192-22R2022-03-18Electrical SystemThis bulletin has been developed to outline the steps for gathering basic essential…
01-167-08R2021-06-17Electrical SystemThis bulletin contains additional information for recommended materials listed in the…

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 Outback. 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 1998 Outback take?

4.2 qt of 5W-30 API SM, per the factory manual.

Does the 1998 Outback have open recalls?

NHTSA lists 2 recall campaign(s) for this model year. Check your specific vehicle by VIN.