Subaru›Legacy›1997›2.5L/subaru/legacy/1997/2-5l/

1997 Subaru Legacy — 2.5L

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1997 Legacy 2.5L. Covers both the standard and High Output 2.5L.

Body PASSENGER CAREngine 2.5LTransmission Automatic 4-spd

The 1997 Subaru Legacy 2.5L is a passenger car powered by a 2.5-liter engine and an automatic four-speed transmission, carrying EPA ratings of 21 mpg city, 29 mpg highway, and 24 mpg combined and requiring 4.8 quarts of 5W-30 API oil. With 146 owner complaints and six recalls on record, the model’s most frequent grievances fall under engine and engine cooling, a profile that situates it in a higher-complaint phase of the 1990–2025 model run—below the 1995 peak of 216 reports but far above the series low of six complaints logged for 2025. That placement indicates a vehicle whose powertrain and cooling systems warrant closer scrutiny than those of the line’s later, less-troubled years.

Model year201420132012201120102009200820071997

Quick specs

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

Engine oil capacity4.8 qtOEM · verified
Engine oil type5W-30 APIOEM · verified
Lug nut torque58-72 ft-lbsOEM · verified
EPA fuel economy21/29/24 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 35 · 355 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 · 355 CCAOEM · verified
Tail / brake / turnTURNOEM · verified

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 4-spd

Dimensions & weight NHTSA vPIC

Overall length181.1 in
Overall width67.7 in
Overall height55.5 in
Wheelbase103.5 in
Curb weight2886 lb
Track (front / rear)57.1 / 57.1 in
Weight distribution (front / rear)56/44

Ratings & economy EPA / vPIC

EPA city / highway / combined21 / 29 / 24 mpg
DrivetrainFront-Wheel Drive
Passenger volume92 cu ft
Cargo volume13 cu ft
Recommended fuelRegular Gasoline

Performance & power Independent road tests

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

No 1997 road test on record; the results below are same-engine tests from nearby model years, each shown under its own year.

9.0–9.8 sec0–60 mph (tested)quickest 9.00 sec — 1999 Limited
YearTrim / engine0–60¼ mileHPDrivetrain
1996Outback 2.5L F-49.80 sec17.40 sec155 hpAWD
1999Limited 2.5L F-49.00 sec16.90 sec165 hpAWD

Service quick specs OEM factory data

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

This engine holds 4.8 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 Capacity4.8 qt
Power Steering FluidATF
Transfer Case Fluid80W-90 · GL-5

Engine torques

Connecting Rod (Large End) Bearings33 ft-lbs
Crankshaft Pulley and/or Damper Bolts123-137 ft-lbs
Engine Flywheel Bolts53 ft-lbs
Intake Manifold to Engine Bolts18.1 ft-lbs
Exhaust Manifold to Cylinder Head Bolts22.4 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs5 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
Ignition Coil Primary Resistance.66-.80 ohms
Ignition Coil Secondary Resistance10,880-14,720 ohms
Spark Plug ManufacturerChampion
Spark Plug Gap0.039-0.043 in
Spark Plug Torque13-17 ft-lbs

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 Performance355 cca

Service checks

Pressure Test23 psi
Radiator Cap Pressure Relief11-15 psi
Thermostat Opening Temperature169-176 °F
Injector Primary Resistance5-20 ohms
Engine Compression137-176 psi
Engine Oil Pressure14 psi @ 600-700 rpm, 43 psi @ 5000 rpm psi
Intake Valve LashHydraulic in
Exhaust Valve LashHydraulic in

Brakes

Minimum Pad ThicknessFront: 0.295; Rear: 0.256 specification
Vented Rotor Minimum Thickness for ReplacementFront: .866; Rear: .335
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
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 Breather Filter (replace) · Headlamp (inspect alignment)
Every 60,000 miAccessory Drive Belt (inspect) · Wheel Bearing (inspect)
At 105,000 miDrive Belt (replace) · Engine Valves (inspect valve lash)

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 1997 Subaru Legacy marks the height of recall activity for the late 1990s period, logging 6 recalls which surpasses any other model year between 1990 and 1999. Complaint volume remained elevated at 146 reports, continuing a period of heightened scrutiny that began with a spike to 216 complaints in 1995, while Technical Service Bulletins reached 44, the highest count of the decade. The data highlights specific concern areas including Engine & Engine Cooling with 23 complaints and Service Brakes, Hydraulic with 22, alongside 18 crash complaints, though the record does not specify root causes. Following this model year, federal attention eased slightly as complaints dropped to 124 in 1998 and 98 in 1999, indicating 1997 sits at the zenith of documented issues for this specific era. Prospective buyers should view this year as carrying higher regulatory risk than adjacent models, making it a less favorable choice within the late 1990s production run.

6
Open recalls
NHTSA campaigns
44
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
146
Owner complaints
18 involved a crash · 3 a fire
Owner complaints by model year NHTSA · this generation & adjacent
’90’91’92’93’94’95’96’97’98’99’00’01’02’03’04’05’06’07’08’09’10’11’12’13’14’15’16’17’18’19’20’21’22’23’24’25

Owner complaints filed with NHTSA, by component

All 146 complaints on record, top 8 components.

Engine & Engine Cooling23
Service Brakes, Hydraulic22
Power Train12
Electrical System12
Air Bags9
Vehicle Speed Control9
Fuel System, Gasoline6
Latches/Locks/Linkages6

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 6 campaigns on record for this vehicle.

00I002000Electrical System:Alternator/Generator/RegulatorReported 15/05/2000

THIS IS NOT A SAFETY RECALL IN ACCORDANCE WITH THE SAFETY ACT. HOWEVER, IT IS DEEMED A SAFETY IMPROVEMENT CAMPAIGN BY THE AGENCY. VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME OF THESE VEHICLES HAVE AN ALTERNATOR… Remedy: DEALERS WILL REPLACE THE ALTERNATOR WITH A MODIFIED ALTERNATOR. OWNERS WILL ALSO BE CAUTIONED THAT, SHOULD THE ALTERNATOR TELLTALE WARNING LAMP ILLUMINATE, THEY MUST SEEK…

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…

Technical service bulletins NHTSA · verified

Showing 5 of 44 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 Legacy. 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.

Group 35 batteryVehicles taking 4.8 qt

Reference guides

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

Vehicle recalls & TSBsOBD-II trouble codesTorque specificationsMaintenance schedulesFluid capacities & specs

Frequently asked

How much oil does the 1997 Legacy 2.5L take?

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

Does the 1997 Legacy have open recalls?

NHTSA lists 6 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the 2.5L get?

EPA figures are 21 city / 29 highway / 24 combined mpg.