39/100

1990Midsize CarsRegular

1990 Buick Century

EPA ID: 6795

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City MPG

Combined MPG

21MPG· Average

Highway MPG

Fuel Economy Overview

The 1990 Buick Century achieves an EPA-estimated 21 MPG in combined city and highway driving, with 18 MPG in the city and 26 MPG on the highway. Powered by a 3.3L 6-cylinder engine paired with a automatic 4-spd, this midsize cars features Front-Wheel Drive drive.

In terms of environmental impact, the 1990 Century produces approximately 423 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 $2,850, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $3,500 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 Cars

Fuel TypeRegular

Engine3.3L 6-cyl

AspirationNaturally Aspirated

TransmissionAutomatic 4-spd

Drive TypeFront-Wheel Drive

Green Scorecard

CO2 Emissions423 g/mi

Start-Stop SystemNot Equipped

GHG Score-1/10

Smog RatingN/A

Est. Annual Cost$2,850

5-Year Cost DeltaSave $3,500

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

20.9

Impact vs EPA

+$13

/ 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

$625/mo

Includes estimated depreciation, fuel, insurance, and state fees over 5 years. Does not include loan interest.

Annual Mileage15,000 mi

Value Depreciation

Est. value lost over 60 months

$16,000

42.7%

Fuel & Electricity

Based on National Average rates ($3.50/gal)

$12,500

33.3%

Estimated Insurance

Based on vehicle class risk profile

$8,600

22.9%

State Registration Fees

Based on National Average DMV base rates

$400

1.1%

Total 5-Year Cost$37,500

Recall Intelligence

Campaign #95V173000·1995-10-19

critical

Component: 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."

Consequence & Remedy

Consequence: CONSEQUENCE OF NON-COMPLIANCE: IN A COLLISON, STRESS CAN CAUSE THE ATTACHMENT METAL TO TEAR AND ALLOW THE ANCHORAGE TO SEPARATE FROM THE BODY OF THE VEHICLE. THE SAFETY BELT MAY NOT PROTECT AN OCCUPANT IN THE EVENT OF A VEHICLE CRASH.

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.

Campaign #92V124000·1992-09-24

critical

Component: 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.

Consequence & Remedy

(Based on 200,000 miles driven)

84.6 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.