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1990 Subaru Legacy

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1990 Legacy.

Body PASSENGER CARTransmission Automatic 4-spd

The 1990 Subaru Legacy is a passenger car equipped with an automatic four‑speed transmission and an engine that requires 4.8 quarts of 5W‑30 API oil. EPA fuel‑economy estimates stand at 19 city, 26 highway and 21 combined mpg. Owner‑reported issues total 102, with structural concerns leading the complaint categories and four recalls recorded for the model year. In the broader 1990‑2025 complaint record the 1990 year sits well below the 1995 peak of 216 complaints but well above the 2025 low of six, indicating a mid‑range reliability profile for the generation.

Model year202520242023202220212020201920181990

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
EPA fuel economy19/26/21 mpgEPA · verified

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 4-spd

Dimensions & weight NHTSA vPIC

Overall length177.6 in
Overall width66.5 in
Overall height55.1 in
Wheelbase101.6 in
Curb weight2601 lb
Track (front / rear)57.1 / 56.7 in

Ratings & economy EPA / vPIC

EPA city / highway / combined19 / 26 / 21 mpg
DrivetrainFront-Wheel Drive
Passenger volume90 cu ft
Cargo volume14 cu ft
Recommended fuelRegular Gasoline

Performance & power Independent road tests

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

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

7.9 sec0–60 mph (tested)quickest 7.90 sec — 1991 Sport
YearTrim / engine0–60¼ mileHPDrivetrain
1991Sport 2.2L Turbo F-47.90 sec16.10 sec160 hpAWD
1991Sport 2.2L Turbo F-47.90 sec16.40 sec160 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.

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

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)
Every 15,000 miBody Latches, Locks & Hinges (inspect) · Brake System (inspect) · Clutch Assembly (inspect) · Engine Coolant System (leak inspection) · Hill Holder System (inspect) · Steering System (inspect)
Every 30,000 miBrake Drum Assembly (inspect) · Brake Hydraulic System (drain, refill & bleed) · Brake Power Booster Unit (inspect) · Differential (inspect fluid level) · Engine Air Filter Element (replace) · Fuel Filter (replace)
Every 60,000 miAccessory Drive Belt (inspect) · Timing Belt (replace) · Wheel Bearing (inspect)

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 1990 Subaru Legacy recorded 102 complaints, 4 recalls, 3 investigations, and 16 TSBs. In comparison, the 1991 model saw a slight increase to 111 complaints, while the 1992 model dropped to 70. Looking at the broader trend, complaints remained relatively contained through 1994 before spiking to 216 in 1995, and TSBs grew from just 16 in 1990 to a peak of 572 in 2020. The 1990 model represents the start of this arc and carries the most investigations of the first five years of production. Top complaint areas for this specific year include Structure (20) and Latches/Locks/Linkages (19), though the data does not specify the root causes for these reports. Because it avoids the higher complaint volumes seen in later years and has a very low TSB count, this is a good year to buy.

4
Open recalls
NHTSA campaigns
16
Service bulletins
Manufacturer communications
3
ODI investigations
Office of Defects Investigation
102
Owner complaints
5 involved a crash · 2 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 102 complaints on record, top 8 components.

Structure20
Latches/Locks/Linkages19
Seat Belts15
Power Train14
Vehicle Speed Control7
Tires4
Fuel System, Gasoline4
Exterior Lighting3

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 4 campaigns on record for this vehicle.

94V052000Power Train:Manual TransmissionReported 23/03/1994

WHEN THE VEHICLE IS DRIVEN CONTINUOUSLY UNDER EXTREMELY COLD TEMPERATURES (-22 DEGREES F.) AND HIGH HUMIDITY WEATHER CONDITIONS, THE TRANSMISSION BREATHING (AIR) VENT CAN BE BLOCKED DUE TO MOISTURE FREEZING AT THE OIL… Remedy: DEALERS WILL MODIFY THE OIL GAUGE PIPE AND MODIFY THE OIL LEVEL GAUGE (DIPSTICK) OR REPLACE IT, DEPENDING ON THE TYPE OF DIPSTICK IN THE VEHICLE.

91V082000Power Train:Automatic TransmissionReported 30/05/1991

UNDER CERTAIN LOAD CONDITIONS, THE PARK GEAR MAY NOT DISENGAGE IMMEDIATELY WHEN THE TRANSMISSION LEVER IS MOVED FROM PARK TO REVERSE. Remedy: INSTALL A MODIFIED PARKING BRAKE PAWL TO PREVENT DELAYED RELEASE INTO REVERSE GEAR.

Technical service bulletins NHTSA · verified

Showing 5 of 16 bulletins on record with NHTSA.

BulletinDateComponentSummary
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…
09-51-08R2021-06-07EquipmentThis bulletin is to advise of SOA’s revised catalytic converter recycling program…

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.

Vehicles taking 4.8 qt

Reference guides

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

Vehicle recalls & TSBsOBD-II trouble codesMaintenance schedulesFluid capacities & specs

Frequently asked

How much oil does the 1990 Legacy take?

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

Does the 1990 Legacy have open recalls?

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

What gas mileage does the Legacy get?

EPA figures are 19 city / 26 highway / 21 combined mpg.