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1984Midsize Station WagonsDiesel

1984 Buick Century Estate Wagon

EPA ID: 28176
21
City MPG
24
Combined MPG
24MPG· Average
29
Highway MPG

Fuel Economy Overview

The 1984 Buick Century Estate Wagon achieves an EPA-estimated 24 MPG in combined city and highway driving, with 21 MPG in the city and 29 MPG on the highway. Powered by a 4.3L 6-cylinder engine paired with a automatic 3-spd, this midsize station wagons .

In terms of environmental impact, the 1984 Century Estate Wagon produces approximately 424 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 Estate Wagon has higher-than-average emissions in this regard.

The estimated annual fuel cost for this vehicle is $3,400, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $6,250 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

Vehicle ClassMidsize Station Wagons
Fuel TypeDiesel
Engine4.3L 6-cyl
AspirationNaturally Aspirated
TransmissionAutomatic 3-spd
Drive TypeN/A

Green Scorecard

CO2 Emissions424 g/mi
Start-Stop SystemNot Equipped
GHG Score-1/10
Smog RatingN/A
Est. Annual Cost$3,400
5-Year Cost DeltaSave $6,250

Personalized Commute CalculatorEPA defaults to 55% City / 45% Hwy

55% City45% Highway

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.

Your Real MPG
24.0
Impact vs EPA
+$2
/ year
💨

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

Estimated Monthly Cost
$599/mo
Includes estimated depreciation, fuel, insurance, and state fees over 5 years. Does not include loan interest.
15,000 mi
Value Depreciation
Est. value lost over 60 months
$16,000
44.5%
Fuel & Electricity
Based on National Average rates ($3.50/gal)
$10,938
30.4%
Estimated Insurance
Based on vehicle class risk profile
$8,600
23.9%
State Registration Fees
Based on National Average DMV base rates
$400
1.1%
Total 5-Year Cost$35,938

Recall Intelligence

Campaign #06E043000·2006-10-18
critical
Component: 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 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).

Campaign #89V102000·1989-07-20
critical
Component: VEHICLE SPEED CONTROL

A SMALL NYLON BUSHING IN THE CRUISE CONTROL SERVO BAIL MAY SLIP OUT OF PLACE, CAUSING INTERMITTENT AND UNEXPECTED INCREASES IN ENGINE SPEED OR DIESELING (ENGINE RUN ON WITH IGNITION OFF).

Consequence & Remedy

Consequence: SERVO ROD ASSEMBLY COULD CATCH ON ENGINE COMPONENTS ANDRESULT IN A STUCK THROTTLE WITH POTENTIAL FOR A VEHICLE CRASH.

Remedy: INSTALL A NEW BUSHING IN CRUISE CONTROL SERVO BAIL.

Campaign #84V011000·1984-02-24
critical
Component: SEATS:FRONT ASSEMBLY:RECLINER

SOME VEHICLES HAVE BUCKET SEAT BACK LOCKS THAT DO NOT CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD 207, ANCHORAGE OF SEATS. IN EVENT OF A CRASH, THE SEAT BACK LOCK MAY NOT FUNCTION.

Consequence & Remedy

Consequence:

Remedy: INSPECTION OF SEAT BACK LOCKS WILL BE PERFORMED. LOCKS THAT HAVE BENT, BROKEN OR MISSING HOOKS WILL BE REPLACED.

Campaign #85V034000·
critical
Component: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

THE FUEL SYSTEM MAY LEAK AT THE THROTTLE BODY INJECTION FUEL FEED PIPE CONNECTION. CONSEQUENCE OF DEFECT: THIS LEAKAGE COULD RESULT IN AN UNDERHOOD FIRE WHICH COULD SPREAD TO THE PASSENGER COMPARTMENT AND CAUSE BURN INJURIES TO OCCUPANTS.

Consequence & Remedy

Consequence:

Remedy: REPLACE THE FUEL FEED PIPE.

Campaign #85V104000·
critical
Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM

SOME WAGONS WERE ASSEMBLED WITH A JA2 REAR SYSTEM INSTEAD OF THE JA3 BRAKE SYSTEM. THESE STATION WAGONS MAY EXCEED THE MAXIMUM STOPPING DISTANCE REQUIRED BY FMVSS 105. CONSEQUENCE OF DEFECT: A CRASH COULD OCCUR WITHOUT PRIOR WARNING SHOULD A STOPPING DISTANCE CONFORMING WITH FMVSS 105 BE REQUIRED WHILE THE VEHICLE IS IN MOTION.

Consequence & Remedy

Consequence:

Remedy: INSTALL CORRECT BRAKE SYSTEM.

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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 Estate Wagon configurations.

View Model History

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Fuel Cost Analysis

Annual Fuel Cost$3,400
vs. Avg Vehicle (5 yrs)Save $6,250

Based on 15,000 miles/year and current fuel prices.

Efficiency Breakdown

City21 MPG
Highway29 MPG
Combined24 MPG

Estimated Lifetime Carbon Footprint

(Based on 200,000 miles driven)

84.8 metric tons CO₂
Equivalent To:
🌳 105 tree seedlings grown for 10 yrs
✈️ 7.1 cross-country flights/yr

Data Provenance

Data directly from the EPA National Vehicle and Fuel Emissions Laboratory. The combined rating is a weighted average (55% city, 45% highway). For official figures, visit fueleconomy.gov.