1984 GMC S15 Pickup
18 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| S15 Pickup 2WD | 21 | 29 | 24 | Regular Gasoline | 2-Wheel Drive | 2L 4-cyl | Manual 4-spd |
| S15 Pickup 2WD | 23 | 31 | 26 | Regular Gasoline | 2-Wheel Drive | 2L 4-cyl | Manual 5-spd |
| S15 Pickup 2WD | 18 | 24 | 20 | Regular Gasoline | 2-Wheel Drive | 2L 4-cyl | Automatic 4-spd |
| S15 Pickup 2WD | 19 | 25 | 21 | Regular Gasoline | 2-Wheel Drive | 2L 4-cyl | Manual 4-spd |
| S15 Pickup 2WD | 20 | 26 | 22 | Regular Gasoline | 2-Wheel Drive | 2L 4-cyl | Manual 5-spd |
| S15 Pickup 2WD | 26 | 31 | 28 | Diesel | 2-Wheel Drive | 2.2L 4-cyl | Manual 4-spd |
| S15 Pickup 2WD | 26 | 31 | 28 | Diesel | 2-Wheel Drive | 2.2L 4-cyl | Manual 4-spd |
| S15 Pickup 2WD | 26 | 32 | 29 | Diesel | 2-Wheel Drive | 2.2L 4-cyl | Manual 5-spd |
| S15 Pickup 2WD | 16 | 22 | 18 | Regular Gasoline | 2-Wheel Drive | 2.8L 6-cyl | Automatic 4-spd |
| S15 Pickup 2WD | 16 | 21 | 18 | Regular Gasoline | 2-Wheel Drive | 2.8L 6-cyl | Manual 4-spd |
| S15 Pickup 2WD | 16 | 22 | 18 | Regular Gasoline | 2-Wheel Drive | 2.8L 6-cyl | Manual 5-spd |
| S15 Pickup 2WD | 18 | 24 | 20 | Regular Gasoline | 2-Wheel Drive | 2L 4-cyl | Automatic 3-spd |
| S15 Pickup 2WD | 21 | 26 | 23 | Regular Gasoline | 2-Wheel Drive | 2L 4-cyl | Manual 4-spd |
| S15 Pickup 2WD | 20 | 27 | 23 | Regular Gasoline | 2-Wheel Drive | 2L 4-cyl | Manual 5-spd |
| S15 Pickup 2WD | 26 | 31 | 28 | Diesel | 2-Wheel Drive | 2.2L 4-cyl | Manual 5-spd |
| S15 Pickup 2WD | 17 | 24 | 19 | Regular Gasoline | 2-Wheel Drive | 2.8L 6-cyl | Automatic 4-spd |
| S15 Pickup 2WD | 16 | 22 | 18 | Regular Gasoline | 2-Wheel Drive | 2.8L 6-cyl | Manual 4-spd |
| S15 Pickup 2WD | 16 | 23 | 19 | Regular Gasoline | 2-Wheel Drive | 2.8L 6-cyl | Manual 5-spd |