40/100

2008Large CarsGasoline or E85

2008 Chevrolet Impala

EPA ID: 24696

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City MPG

Combined MPG

22MPG· Average

Highway MPG

Fuel Economy Overview

The 2008 Chevrolet Impala achieves an EPA-estimated 22 MPG in combined city and highway driving, with 18 MPG in the city and 29 MPG on the highway. Powered by a 3.5L 6-cylinder engine paired with a automatic 4-spd, this large cars features Front-Wheel Drive drive.

In terms of environmental impact, the 2008 Impala produces approximately 404 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 Impala has higher-than-average emissions in this regard.

The estimated annual fuel cost for this vehicle is $2,700, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $2,750 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 ClassLarge Cars

Fuel TypeGasoline or E85

Engine3.5L 6-cyl

AspirationNaturally Aspirated

TransmissionAutomatic 4-spd

Drive TypeFront-Wheel Drive

Green Scorecard

CO2 Emissions404 g/mi

Start-Stop SystemNot Equipped

GHG Score-1/10

Smog RatingN/A

Est. Annual Cost$2,700

5-Year Cost DeltaSave $2,750

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

21.7

Impact vs EPA

+$32

/ 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

$706/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

$20,000

47.2%

Fuel & Electricity

Based on National Average rates ($3.50/gal)

$11,932

28.2%

Estimated Insurance

Based on vehicle class risk profile

$10,000

23.6%

State Registration Fees

Based on National Average DMV base rates

$400

0.9%

Total 5-Year Cost$42,332

Recall Intelligence

Campaign #14V355000·2014-09-23

critical

Component: ELECTRICAL SYSTEM:IGNITION

This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) is recalling certain model year 2005-2009 Buick LaCrosse, 2006-2011 Buick Lucerne, 2000-2005 Cadillac DeVille, 2006-2011 Cadillac DTS, 2006-2014 Chevrolet Impala, and 2006-2007 Chevrolet Monte Carlo vehicles. In the affected vehicles, the weight on the key ring and road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.

Consequence & Remedy

Consequence: If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury. Additionally, a key knocked out of the run position will cause loss of engine power, power steering, and power braking, increasing the risk of a vehicle crash.

Remedy: GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on September 23, 2014. Owners may contact General Motors customer service at 1-800-521-7300 (Buick), 1-800-458-8006 (Cadillac), and 1-800-222-1020 (Chevrolet). GM's number for this recall is 14299.

Campaign #12V377000·2012-08-21

critical

Component: SUSPENSION:FRONT:CONTROL ARM:LOWER ARM

General Motors (GM) is recalling certain model year 2008-2012 Chevrolet Impala police vehicles because the front lower control arms may fracture. This safety recall does not include non-police Chevrolet Impala vehicles.

Consequence & Remedy

(Based on 200,000 miles driven)

80.8 metric tons CO₂

Equivalent To:

🌳 100 tree seedlings grown for 10 yrs

✈️ 6.7 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.