GeoMetro1991Overview/geo/metro/1991/base/

1991 Geo Metro

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1991 Metro.

Transmission Automatic 3-spd

The 1991 Geo Metro arrived with a three-speed automatic transmission and EPA fuel economy ratings of 31 mpg city, 35 mpg highway, and 33 mpg combined. Service intervals require 3.5 quarts of 5W-30 API oil. With 59 documented owner complaints—dominated by seat belt issues—and two recalls on record, this model year sits at the midpoint of the Metro's 1990–2001 production span, registering fewer grievances than the 1995 peak of 121 complaints but significantly more than the 2001 low of six, indicating moderate reliability relative to the generation.

Model year199719961995199419931992199119901989

Quick specs

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

Engine oil capacity3.5 qtOEM · verified
Engine oil type5W-30 APIOEM · verified
EPA fuel economy31/35/33 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses OE oil filter 25325406. Note the factory engine oil filter, engine air filter, fuel filter, serpentine belt and thermostat are now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. 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.

OE service part numbers OEM · verified

Engine oil filter25325406 discontinued · alt 25322837
Engine air filter25099249 discontinued
Fuel filter25121585 discontinued
Spark plug19354423 alt 19302733
Front wiper blades12344992 alt 12344993
Serpentine belt30010310 discontinued · alt 96058052
Thermostat96067938 discontinued · alt 96060140

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 3-spd

Ratings & economy EPA / vPIC

EPA city / highway / combined31 / 35 / 33 mpg
DrivetrainFront-Wheel Drive
Recommended fuelRegular Gasoline

Service quick specs OEM factory data

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

This engine holds 3.5 qt of 5W-30 API engine oil, DOT 3 brake fluid.

Lubricants & capacities

Brake FluidDOT 3
Engine CoolantETHYLENE GLYCOL
Engine Oil5W-30 · API
Engine Oil Capacity3.5 qt
Power Steering FluidUSE GM PART NO. 1052884 OR EQUIVALENT

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 30,000 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.

At 7,500 miTire & Wheel Assembly (rotate)
Every 7,500 miBody Latches, Locks & Hinges (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Weatherstrip Seal (inspect)
Every 15,000 miFuel Line (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect) · Tire & Wheel Assembly (rotate)
Every 30,000 miAccessory Drive Belt (inspect) · Engine Air Filter Element (replace) · Engine Coolant System (drain, flush & refill) · Spark Plugs (replace)
Every 45,000 miTransmission Oil Cooler Line (inspect)
Every 60,000 miBrake Hydraulic System (drain, refill & bleed) · Spark Plug Wires (replace) · Vehicle Wiring Harnesses (inspect)
Every 100,000 miTransmission Fluid & Filter (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 1991 Geo Metro sits in the early portion of this generation's complaint arc, which rises from 43 complaints in 1990 to a peak of 121 in 1995 before declining steadily to just 6 by 2001. At 59 complaints, the target year represents a moderate step up from its predecessor but remains well below the mid-generation peak, suggesting the model had not yet accumulated the aging-related issues that would drive complaints sharply higher later. Notably, recalls hold steady at 2 (matching 1990) and investigations remain relatively high at 3, indicating regulators were still actively scrutinizing early-production vehicles; this regulatory attention drops to zero after 1993. The 1991's top complaint areas — Seat Belts and Latches/Locks/Linkages (15 each) — point to hardware integrity concerns rather than systemic powertrain failure, though 7 crash-related complaints and 1 fire complaint warrant attention. The data does not specify root causes for any of these areas. **Takeaway:** The 1991 is a reasonable buy within this generation — it avoids the worst complaint volumes seen in 1994–1996, and its remaining recalls and investigations suggest early production issues were being addressed rather than ignored — but a buyer should specifically verify seat belt and latch functionality, as those dominate the complaint record for this year.

2
Open recalls
NHTSA campaigns
2
Service bulletins
Manufacturer communications
3
ODI investigations
Office of Defects Investigation
59
Owner complaints
7 involved a crash · 1 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Overall★★★★★
Frontal★★★★★
Side★★★★★
Rollover★★★★★
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 59 complaints on record, top 8 components.

Seat Belts15
Latches/Locks/Linkages15
Engine & Engine Cooling5
Structure4
Seats3
Air Bags3
Electrical System3
Fuel System, Gasoline2

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 2 campaigns on record for this vehicle.

93V189001Latches/Locks/Linkages:Hood:LatchReported 23/11/1993

MISLOCATED ATTACHING SPOT WELDS OF THE HOOD STRIKER ASSEMBLY CAUSE CRACKS TO START ON THE HOOD INNER PANEL. IF CRACKS OCCUR, THE HOOD STRIKER ASSEMBLY MAY NOT PROPERLY ENGAGE THE HOOD LATCH WHEN THE HOOD IS CLOSED. Remedy: GM DEALERS WILL (A) INSTALL TWO BOLTS AND NUTS TO SECURE THE STRIKER ASSEMBLY TO THE HOOD INNER PANEL, AND (B) ENSURE THAT THE HOOD LATCH ASSEMBLY FASTENERS ARE PROPERLY TIGHTENED.

95V103007Seat Belts:Front:Buckle AssemblyReported 24/05/1995

THE FRONT SAFETY BELT BUCKLE RELEASE BUTTONS CAN BREAK. THESE RED PLASTIC RELEASE BUTTONS ARE MARKED "PRESS." IF A BUTTON BREAKS, PIECES CAN FALL INTO THE BUCKLE ASSEMBLY CAUSING THE BUCKLE TO OPERATE IMPROPERLY. Remedy: OWNERS SHOULD PROMPTLY CHECK THE CONDITION AND OPERATION OF BOTH FRONT SAFETY BELT BUCKLES AND CAREFULLY INSPECT THE RED RELEASE BUTTON FOR ANY BREAKS OR CRACKS. THEY SHOULD…

Technical service bulletins NHTSA · verified

Showing 2 of 2 bulletins on record with NHTSA.

BulletinDateComponentSummary
1300890092013-09-01Engine And Engine CoolingExpanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
MSG011451995-05-01Seat BeltsUNKNOWN

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 Metro. 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 1991 Metro take?

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

Does the 1991 Metro have open recalls?

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

What gas mileage does the Metro get?

EPA figures are 31 city / 35 highway / 33 combined mpg.