2004 Chevrolet Express Cargo (dedicated CNG) specs & fuel economy
The 2004 Chevrolet Express Cargo (dedicated CNG) is rated 12 MPGe combined by the EPA (11 city, 15 highway).
EPA data snapshot imported 2026-09-06 · United States · US gallons
The 2004 Chevrolet Express Cargo (dedicated CNG) has 1 EPA-listed configuration in our 2026-09-06 data snapshot. Listed transmissions: Automatic 4-spd. Compare the engine, drive type and fuel ratings below before matching an individual car by VIN.
Engine, transmission and fuel economy
The single 2004 Express Cargo (dedicated CNG) configuration EPA rated, with a link to its source record. Combined primary-fuel ratings: 12 MPGe. Missing values remain “Not reported.”
| Engine / transmission / drive | Primary fuel | City | Highway | Combined | Source |
|---|---|---|---|---|---|
| 6L 8-cyl · Automatic 4-spd · Rear-Wheel Drive | Natural GasCNG | 11 MPGe | 15 MPGe | 12 MPGe | EPA #20430 |
Other 2004 Chevrolet Express Cargo versions
EPA lists these versions separately. The figures above apply to the listing named “Express Cargo (dedicated CNG)”; they are not a specification for every Express Cargo trim.
What would it cost you to run?
Enter your own mileage and prices — these are assumptions, not live pump prices.
| Configuration | Annual cost | Calculation basis |
|---|---|---|
| 6L 8-cyl · Automatic 4-spd · Rear-Wheel DriveEPA #20430 | Not calculated | Check inputs; this fuel may not be supported. |
Miles ÷ combined MPG × price per gallon; electric versions use miles ÷ 100 × kWh/100 miles × price per kWh. Plug-in hybrids show gasoline operation only. Maintenance, insurance and depreciation are excluded.
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See what the paid report includes →Use these specs to check a 2004 Express Cargo (dedicated CNG) listing
- Confirm the seller’s car is a 2004 Chevrolet Express Cargo (dedicated CNG) with the Automatic 4-spd.
- Check that it takes Natural Gas on the vehicle’s own fuel label.
- Run the VIN for identity, title and reported history — none of which is in this EPA data.
- Check open recalls on the NHTSA lookup and have the car inspected.
Sources reviewed
Open the underlying public source and verify that its scope matches the question you are asking.
Frequently asked questions
What is the gas mileage of the 2004 Chevrolet Express Cargo (dedicated CNG)?
The 2004 Chevrolet Express Cargo (dedicated CNG) is rated 12 MPGe combined by the EPA (11 city, 15 highway).
What transmission does the 2004 Chevrolet Express Cargo (dedicated CNG) have?
EPA records list Automatic 4-spd across the 1 rated configuration of the 2004 Chevrolet Express Cargo (dedicated CNG). These are model-level configurations. Match the individual car’s VIN and factory build information before identifying a replacement transmission.
What fuel does the 2004 Chevrolet Express Cargo (dedicated CNG) use?
The 2004 Chevrolet Express Cargo (dedicated CNG) is listed with Natural Gas. Match the particular configuration and follow the vehicle’s fuel label and owner’s manual.
Are these the exact specifications of my Express Cargo (dedicated CNG)?
These are the 1 EPA model-year configuration recorded for the 2004 Chevrolet Express Cargo (dedicated CNG), not a decode of an individual VIN or a complete trim catalogue. Confirm identity, installed equipment and service requirements with the car’s VIN and manufacturer records.
Will I achieve the listed fuel economy?
EPA ratings support comparisons under standardized test conditions. Your result depends on driving, weather, tyres, load, charging pattern and vehicle condition. The cost calculator uses the listed combined rating and your entered prices.