1986 Buick Century
US · Midsize Cars
The 1986 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 Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.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), 2.8L 6-cylinder (FFS), 3.8L 6-cylinder (FFS)
- Transmission
- Automatic
- Drivetrain
- FWD
- Fuel
- Gasoline
- Economy
- 19 mpg (12.4 L/100 km) to 23 mpg (10.2 L/100 km) combined
Key Figures
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 2.5L 4-cylinder (FFS), 2.8L 6-cylinder (FFS), 3.8L 6-cylinder (FFS) | |
| Displacement | 2.5 L to 3.8 L | |
| Cylinders | 4 to 6 | |
| Fuel type | Gasoline | EPA fueleconomy.gov |
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Automatic | EPA fueleconomy.gov |
| Gears | 3 to 4 | |
| Drivetrain | FWD | EPA fueleconomy.gov |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 19 mpg (12.4 L/100 km) to 23 mpg (10.2 L/100 km) | EPA fueleconomy.gov |
| City | 17 mpg (13.8 L/100 km) to 19 mpg (12.4 L/100 km) | |
| Highway | 24 mpg (9.8 L/100 km) to 29 mpg (8.1 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Our sources do not publish these for this vehicle: Aspiration, Power, Torque, Electric range, Battery capacity.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
4 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.
Recalls
NHTSA lists 3 recall campaigns for this model year. Last checked November 8, 2026.
06E043000: FUEL SYSTEM, GASOLINE
CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18, 2005, THROUGH MARCH 21, 2006, SOLD FOR USE ON THE VEHICLES LISTED ABOVE AND ON CERTAIN SCHOOL BUSES. (TO SEE THE SCHOOL BUS ENGINE SIZES, CLICK ON "DOCUMENT SEARCH" AND THEN "BUS…
Remedy: HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 18, 2006. OWNERS MAY CONTACT FRAM CUSTOMER SERVICE AT 1-800-890-2075 (OPTION 1).
Reported May 19, 2006. View on NHTSA
86V061000: ELECTRICAL SYSTEM:WIRING: REAR COMPARTMENT/TRUNK
AN INCORRECTLY INDEXED WIRING HARNESS MAY CAUSE THE CENTER HIGH MOUNTED STOP LAMP TO REMAIN ILLUMINATED WHEN THE HEADLIGHTS OR PARKING LAMPS ARE ON. FMVSS 108 LAMPS, REFLECTIVE DEVICES AND ASSOCIATED EQUIPMENT REQUIRES THAT THIS STOP LAMP BE LIGHTED ONLY WHEN THE BRAKES ARE APPLIED. ALSO, THE OPERA LAMPS MAY COME ON WHEN THE BRAKES ARE APPLIED.…
Remedy: CORRECTLY INDEX WIRING HARNESS TERMINALS.
Reported May 13, 1986. View on NHTSA
85V122000: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR
THE GENERATOR "BAT" TERMINAL LOCATED ON THE RECTIFIER END FRAME MAY CONTACT THE CARBURETOR FUEL INLET PIPE. CONSEQUENCE OF DEFECT: THE "BAT" STUD MAY RUB THROUGH THE TERMINAL BOOT AND CONTACT THE FUEL PIPE WHICH COULD RESULT IN AN UNDERHOOD FIRE AND CAUSE BURN INJURIES TO THE…
Remedy: OBTAIN CLEARANCE BETWEEN FUEL PIPE AND GENERATOR "BAT" TERMINAL BY ROTATING THE RECTIFIER END FRAME.
Reported October 4, 1985. View on NHTSA
Data sources
- EPA fueleconomy.gov · retrieved October 23, 2026 · US Government public data
- NHTSA vPIC · retrieved October 23, 2026 · US Government public data
Source checked: October 23, 2026
Data verified: October 24, 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
- 1985 Buick Century
Varies by configuration: Gasoline, Diesel
Varies by configuration: 3.0L 6-cylinder ((FFS) CA model), 4.3L 6-cylinder (CA model), 2.5L 4-cylinder ((FFS)), 3.0L 6-cylinder ((FFS)), 3.8L 6-cylinder ((FFS)), 4.3L 6-cylinder · FWD
27 mpg (8.7 L/100 km) to 18 mpg (13.1 L/100 km) - 1987 Buick Century
Gasoline
Varies by configuration: 2.5L 4-cylinder ((FFS)), 2.8L 6-cylinder ((FFS)), 3.8L 6-cylinder ((FFS)) · FWD
23 mpg (10.2 L/100 km) to 19 mpg (12.4 L/100 km)
Frequently asked questions
What engine does the 1986 Buick Century have?
Varies by configuration: 2.5L 4-cylinder ((FFS)), 2.8L 6-cylinder ((FFS)), 3.8L 6-cylinder ((FFS)). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 1986 Buick Century?
Combined fuel economy is 19 mpg (12.4 L/100 km) to 23 mpg (10.2 L/100 km), as published by the source shown in the specification table.
Is the 1986 Buick Century front-wheel, rear-wheel or all-wheel drive?
Drivetrain: FWD.
Are there recalls for the 1986 Buick Century?
NHTSA lists 3 recall campaigns for this model year (last checked November 8, 2026). Details are in the Recalls section.