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1991 Buick Century

US · Midsize Cars

The 1991 Buick Century is listed in the US market with gasoline power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.

Engine
Varies by configuration: 2.5L 4-cylinder (FFS), 3.3L 6-cylinder (FFS)
Transmission
Automatic
Drivetrain
FWD
Fuel
Gasoline
Economy
19 mpg (12.4 L/100 km) to 22 mpg (10.7 L/100 km) combined
Generic outline for this body type. An illustration, not a photograph.
Specifications at a Glance

Key Figures

Units:
Engine / Powertrain
2.5L 4-cylinder (FFS), 3.3L 6-cylinder (FFS)
Combined Economy
19 mpg (12.4 L/100 km) to 22 mpg (10.7 L/100 km) combined
Drivetrain
FWD
Transmission
Automatic
Market: US·Switch units to convert the figures shown.
Compare 1991 Buick Century ↗

Engine

Engine
SpecificationValueSource
EngineVaries by configuration: 2.5L 4-cylinder (FFS), 3.3L 6-cylinder (FFS)
Displacement2.5 L to 3.3 L
Cylinders4 to 6
Fuel typeGasoline

Transmission and drivetrain

Transmission and drivetrain
SpecificationValueSource
TransmissionAutomatic
Gears3 to 4
DrivetrainFWD

Fuel economy and range

Fuel economy and range
SpecificationValueSource
Combined19 mpg (12.4 L/100 km) to 22 mpg (10.7 L/100 km)
City17 mpg (13.8 L/100 km) to 19 mpg (12.4 L/100 km)
Highway24 mpg (9.8 L/100 km) to 28 mpg (8.4 L/100 km)

Our sources do not publish these for this vehicle: Aspiration, Power, Torque, Electric range, Battery capacity. We leave them out instead of estimating.

Trims and configurations

3 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.

Recalls

NHTSA lists 2 recall campaigns for this model year. Last checked November 7, 2026.

  • 95V173000: SEAT BELTS:FRONT:ANCHORAGE

    THESE VEHICLES WERE ASSEMBLED WITH REAR OUTBOARD SAFETY BELT ANCHORAGES THAT MAY NOT WITHSTAND THE REQUIRED LOAD. THIS DOES NOT COMPLY WITH FMVSS NO.210, "SEAT BELT ASSEMBLY ANCHORAGES."

    Remedy: DEALERS WILL REPLACE THE EXISTING ANCHOR BOLTS WITH A NEW SHOULDER BOLT AND THREAD LOCKING ADHESIVE. ADDITIONALLY, NOISE CONTROL PATCHES WILL BE APPLIED AT EACH ANCHORAGE.

    Reported September 15, 1995. View on NHTSA

  • 92V124000: SEATS:FRONT ASSEMBLY:RECLINER

    THE POWER SEAT OR RECLINER WIRING HARNESS CAN BE PINCHED OR CAN CHAFE ON THE SEAT FRAME OR SPRING SUPPORT ROD, WEARING THROUGH THE WIRE INSULATION AND CAUSING AN ELECTRICAL SHORT.

    Remedy: REPAIR ANY ABRADED WIRING AND REROUTE THE WIRING HARNESS USING A WIRING HARNESS CLIP.

    Reported September 1, 1992. View on NHTSA

Data sources

  • EPA fueleconomy.gov · retrieved October 21, 2026 · US Government public data
  • NHTSA vPIC · retrieved October 21, 2026 · US Government public data

Source checked: October 21, 2026

Data verified: October 21, 2026

Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.

Related vehicles

  • Varies by configuration: 2.5L 4-cylinder ((FFS)), 3.3L 6-cylinder ((FFS)) · FWD
    23 mpg (10.2 L/100 km) to 20 mpg (11.8 L/100 km)

  • Varies by configuration: 2.5L 4-cylinder ((FFS)), 3.3L 6-cylinder ((FFS)) · FWD
    22 mpg (10.7 L/100 km) to 19 mpg (12.4 L/100 km)

Frequently asked questions

What engine does the 1991 Buick Century have?

Varies by configuration: 2.5L 4-cylinder ((FFS)), 3.3L 6-cylinder ((FFS)). Engines can differ by trim, so check the trim list below.

What is the fuel economy of the 1991 Buick Century?

Combined fuel economy is 19 mpg (12.4 L/100 km) to 22 mpg (10.7 L/100 km), as published by the source shown in the specification table.

Is the 1991 Buick Century front-wheel, rear-wheel or all-wheel drive?

Drivetrain: FWD.

Are there recalls for the 1991 Buick Century?

NHTSA lists 2 recall campaigns for this model year (last checked November 7, 2026). Details are in the Recalls section.