1986 Buick Century
Fuel Economy Overview
The 1986 Buick Century achieves an EPA-estimated 20 MPG in combined city and highway driving, with 18 MPG in the city and 26 MPG on the highway. Powered by a 2.8L 6-cylinder engine paired with a automatic 4-spd, this midsize cars features Front-Wheel Drive drive.
In terms of environmental impact, the 1986 Century produces approximately 444 grams of CO2 per mile. This figure is measured under standardized EPA test conditions and represents tailpipe emissions only. For context, the average new vehicle sold in the United States produces approximately 400 grams of CO2 per mile, meaning this Century has higher-than-average emissions in this regard.
The estimated annual fuel cost for this vehicle is $3,000, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $4,250 over a 5-year period. This calculation accounts for differences in fuel consumption efficiency and provides a practical measure of long-term ownership costs attributable to fuel economy.
Energy DNA
Green Scorecard
Personalized Commute CalculatorEPA defaults to 55% City / 45% Hwy
Adjust the slider to match your daily driving habits. City driving involves stop-and-go traffic under 45mph, while highway driving represents sustained speeds over 55mph.
Aerodynamic Speed Penalty
EPA highway tests average roughly 48 mph. Driving at 75 mph increases aerodynamic drag exponentially. Expect your real-world highway fuel economy to drop by roughly 15-20% at interstate speeds.
5-Year Total Cost of Ownership
Recall Intelligence
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 APPLICATIONS"). THE CONNECTOR ON THE FUEL FILTER WAS NOT MANUFACTURED TO HONEYWELL'S SPECIFICATION. AS A RESULT, THE O-RING MAY NOT SEAT CORRECTLY ON THE FUEL LINE.
Consequence & Remedy
Consequence: THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. IN THE PRESENCE OF AN IGNITION SOURCE, A FIRE COULD OCCUR.
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).
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. CONSEQUENCE OF DEFECT: THE CENTER HIGH MOUNTED STOP LAMP PROVIDES ADDITIONAL WARNING THAT THE VEHICLE IS SLOWING OR STOPPING. IF THIS LAMP MALFUNCTIONS, IT MAY CONTRIBUTE TO A REAR END ACCIDENT.
Consequence & Remedy
Consequence:
Remedy: CORRECTLY INDEX WIRING HARNESS TERMINALS.
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 OCCUPANT.
Consequence & Remedy
Consequence:
Remedy: OBTAIN CLEARANCE BETWEEN FUEL PIPE AND GENERATOR "BAT" TERMINAL BY ROTATING THE RECTIFIER END FRAME.
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Looking for comprehensive historical data?
NHTSA FARS (Fatal Crash History) and broader generational safety trends are aggregated at the model level rather than by specific engine configurations. View the complete historical data profile for all Buick Century configurations.
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1986 Buick Century
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Fuel Cost Analysis
Based on 15,000 miles/year and current fuel prices.
Efficiency Breakdown
Estimated Lifetime Carbon Footprint
(Based on 200,000 miles driven)