1999 GMC Sonoma fuel economy
The EPA lists 6 versions of the 1999 GMC Sonoma. Combined fuel economy ranges from 16 to 23 MPG; the most efficient version is rated 20 city / 26 highway.
At a glance
- Combined
- 16 to 23 MPG depending on version
- City and highway
- 20 and 26 most efficient version
- Yearly fuel cost
- $2,900 EPA estimate, most efficient version
Source: U.S. EPA fueleconomy.gov
Every version the EPA tested
| Version | Engine | Drive | City | Highway | Combined | Yearly fuel cost |
|---|---|---|---|---|---|---|
| Sonoma 2WD Manual 5-spd | 4-cyl 2.2L | Rear-Wheel Drive | 20 | 26 | 23 MPG | $2,900 |
| Sonoma 2WD Automatic 4-spd | 4-cyl 2.2L | Rear-Wheel Drive | 17 | 24 | 19 MPG | $3,550 |
| Sonoma 2WD Manual 5-spd | 6-cyl 4.3L | Rear-Wheel Drive | 15 | 21 | 18 MPG | $3,700 |
| Sonoma 2WD Automatic 4-spd | 6-cyl 4.3L | Rear-Wheel Drive | 15 | 20 | 17 MPG | $3,950 |
| Sonoma 4WD Manual 5-spd | 6-cyl 4.3L | 4-Wheel or All-Wheel Drive | 15 | 20 | 17 MPG | $3,950 |
| Sonoma 4WD Automatic 4-spd | 6-cyl 4.3L | 4-Wheel or All-Wheel Drive | 14 | 19 | 16 MPG | $4,200 |
At EPA assumptions, the most efficient version costs about $2,900 per year in fuel, versus $4,200 for the least efficient.