Get listed
Oldsmobile Alero

Photo: Oldsmobile Alero by IFCAR, Public domain, via Wikimedia Commons. It shows the model, not always this exact version.

Oldsmobile · model year 2004

2004 Oldsmobile Alero

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

EPA figures · 2004fueleconomy.gov
21MPG combined
18/27MPG city / highway
$3,200fuel a year
423 g CO₂ per mile 3.4 L 6-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 Oldsmobile Alero is a gasoline compact car with front-wheel drive, a 3.4 L 6-cylinder engine and a 4-speed automatic transmission. EPA fuel economy is listed at 18 MPG city, 27 MPG highway and 21 MPG combined. Its annual EPA fuel cost is $3,200, and tailpipe emissions are 423.19 g of CO2 per mile. These figures give buyers the Alero’s official fuel-use and emissions profile for considering running costs. The highway rating is higher than the city rating, while the combined estimate falls between them. The base model is identified as Alero. It is classified as a car in the Compact Cars EPA class, and gasoline is its listed fuel.

Good to know

  • 27 MPG highway
  • 3.4 L 6-cylinder engine
  • Front-wheel drive
  • 4-speed automatic transmission

Watch for

  • 18 MPG city
  • 21 MPG combined
  • $3,200 annual EPA fuel cost
  • 423.19 g/mile tailpipe CO2

Who it suits. The 2004 Oldsmobile Alero may suit buyers considering a gasoline compact car with front-wheel drive and a 6-cylinder engine. Its EPA MPG and annual fuel-cost figures help frame running-cost comparisons.

The 2004 Oldsmobile Alero has a 3.4 L 6-cylinder engine, front-wheel drive and a 4-speed automatic. Its EPA figures list 21 MPG combined and $3,200 in annual fuel cost.

Every figure on record

Efficiency
Combined MPG
21 MPG
City MPG
18 MPG
Highway MPG
27 MPG
Running cost
Annual fuel cost
$3,200
Tailpipe CO₂
423 g per mile
The car
Model year
2004
Body
Car
EPA size class
Compact Cars
Drive
Front-Wheel Drive
Powertrain
Engine
3.4 L 6-cyl
Transmission
Automatic 4-spd
Fuel
Gasoline

More Oldsmobile model years

Every alternative to the 2004 Oldsmobile Alero →