2004 Chevrolet Silverado
17 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| Silverado 15 Hybrid 2WD Hybrid | 16 | 19 | 17 | Regular Gasoline | Rear-Wheel Drive | 5.3L 8-cyl | Automatic 4-spd |
| Silverado 15 Hybrid 4WD Hybrid | 15 | 17 | 16 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 5.3L 8-cyl | Automatic 4-spd |
| Silverado 1500 2WD | 15 | 19 | 16 | Regular Gasoline | Rear-Wheel Drive | 4.8L 8-cyl | Automatic 4-spd |
| Silverado 1500 2WD | 14 | 19 | 16 | Regular Gasoline | Rear-Wheel Drive | 4.8L 8-cyl | Manual 5-spd |
| Silverado 1500 2WD | 14 | 18 | 16 | Regular Gasoline | Rear-Wheel Drive | 5.3L 8-cyl | Automatic 4-spd |
| Silverado 1500 2WD | 13 | 16 | 14 | Regular Gasoline | Rear-Wheel Drive | 6L 8-cyl | Automatic 4-spd |
| Silverado 1500 2WD | 13 | 18 | 15 | Regular Gasoline | Rear-Wheel Drive | 5.3L 8-cyl | Automatic 4-spd |
| Silverado 1500 2WD | 14 | 19 | 16 | Regular Gasoline | Rear-Wheel Drive | 4.3L 6-cyl | Automatic 4-spd |
| Silverado 1500 2WD | 14 | 19 | 16 | Regular Gasoline | Rear-Wheel Drive | 4.3L 6-cyl | Manual 5-spd |
| Silverado 1500 4WD | 13 | 16 | 14 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 4.8L 8-cyl | Manual 5-spd |
| Silverado 1500 4WD | 13 | 17 | 15 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 5.3L 8-cyl | Automatic 4-spd |
| Silverado 1500 4WD | 12 | 16 | 14 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 5.3L 8-cyl | Automatic 4-spd |
| Silverado 1500 4WD | 13 | 17 | 15 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 4.3L 6-cyl | Automatic 4-spd |
| Silverado 1500 4WD | 13 | 17 | 15 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 4.3L 6-cyl | Manual 5-spd |
| Silverado 1500 4WD | 13 | 17 | 15 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 4.8L 8-cyl | Automatic 4-spd |
| Silverado 1500 AWD | 12 | 15 | 13 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 6L 8-cyl | Automatic 4-spd |
| Silverado 2500 HD 2WD CNG | 9 | 11 | 10 | Natural Gas | Rear-Wheel Drive | 6L 8-cyl | Automatic 4-spd |