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Cadillac · model year 2004

2004 Cadillac DeVille

Large · Front-Wheel Drive · Gas · EPA class: Large Cars

EPA figures · 2004fueleconomy.gov
19MPG combined
16/24MPG city / highway
$3,550fuel a year
468 g CO₂ per mile 4.6 L 8-cyl Automatic 4-spd
This car on fueleconomy.gov, read 2 October 2026. Your own figures depend on how and where you drive.

Where it places

The CarCody take

The 2004 Cadillac DeVille is a large gasoline car with front-wheel drive, a 4.6-liter eight-cylinder engine, and a four-speed automatic transmission. Its EPA rating is 19 MPG combined, with 16 MPG city and 24 MPG highway. EPA annual fuel cost is $3,550, and tailpipe CO2 is 467.74 grams per mile.

Good to know

  • Large-car classification with a 4.6-liter eight-cylinder engine
  • Front-wheel drive and four-speed automatic transmission
  • 24 MPG highway rating

Watch for

  • 16 MPG city rating
  • 19 MPG combined fuel economy
  • EPA annual fuel cost of $3,550
  • 467.74 grams of CO2 per mile

Who it suits. Drivers wanting a large Cadillac gasoline car Buyers comfortable with eight-cylinder fuel costs Mostly highway users who can approach 24 MPG

Choose the 2004 DeVille if a large Cadillac car with front-wheel drive and an eight-cylinder engine matches your needs. The useful baseline is 19 MPG combined, with 16 MPG in town and 24 MPG on open roads. Budgeting matters here: EPA annual fuel cost is $3,550. This is a clear fit for drivers who accept gasoline expense in exchange for the DeVille’s large-car format, rather than shoppers focused on minimizing fuel use.

What it is

The DeVille is Cadillac’s 2004 large car, fitted with front-wheel drive and a 4.6-liter eight-cylinder gasoline engine. A four-speed automatic transmission sends power to the front wheels. See more Cadillac cars.

Its defining EPA figure is 19 MPG combined. That is the single number to use for mixed city and highway driving.

The numbers

EPA rates the DeVille at 16 MPG in city driving and 24 MPG on the highway. The 8 MPG gap shows how much slower, stop-and-go use changes fuel economy compared with steady highway travel.

Tailpipe CO2 is 467.74 grams per mile.

What it costs to run

EPA lists annual gasoline cost at $3,550. Your actual spending will follow how much city driving, highway driving, and total mileage your use involves, while the combined rating provides the middle reference point.

How it compares

Use the 19 MPG combined rating when placing this DeVille beside other large cars. Its 16 city and 24 highway figures show whether your own driving is likely to land nearer the lower or higher end of that range.

Who it suits

This car fits a buyer who wants a large car with a gasoline eight-cylinder engine, front-wheel drive, and automatic transmission. It makes more sense for someone comfortable with the fuel budget tied to 19 combined MPG and $3,550 in EPA annual fuel cost.

Trade-offs

The large-car classification and eight-cylinder powertrain come with a 19 MPG combined rating. City use is lower at 16 MPG, while highway driving reaches 24 MPG.

Front-wheel drive and a four-speed automatic keep the drivetrain straightforward, but the gasoline engine produces 467.74 grams of CO2 per mile.

Verdict

Choose the 2004 DeVille if a large Cadillac car with front-wheel drive and an eight-cylinder engine matches your needs. The useful baseline is 19 MPG combined, with 16 MPG in town and 24 MPG on open roads. Budgeting matters here: EPA annual fuel cost is $3,550. This is a clear fit for drivers who accept gasoline expense in exchange for the DeVille’s large-car format, rather than shoppers focused on minimizing fuel use.

Every figure on record

Efficiency
Combined MPG
19 MPG
City MPG
16 MPG
Highway MPG
24 MPG
Running cost
Annual fuel cost
$3,550
Tailpipe CO₂
468 g per mile
The car
Model year
2004
Body
Car
EPA size class
Large Cars
Drive
Front-Wheel Drive
Powertrain
Engine
4.6 L 8-cyl
Transmission
Automatic 4-spd
Fuel
Gasoline

Questions

What is the 2004 Cadillac DeVille’s combined MPG?

The EPA combined rating is 19 MPG.

What city and highway MPG does it get?

It is rated at 16 MPG in the city and 24 MPG on the highway.

How much does it cost to fuel each year?

EPA annual gasoline cost is $3,550.

What engine and transmission does it use?

The DeVille has a 4.6-liter eight-cylinder gasoline engine and a four-speed automatic transmission.

Is the 2004 DeVille front-wheel drive?

Yes. Its drive layout is front-wheel drive.

How much tailpipe CO2 does it produce?

EPA tailpipe CO2 is 467.74 grams per mile.

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