1991 GMC Sonoma Specs, MPG & Trims
EPA fuel-economy data and specifications for the 1991 GMC Sonoma (16–22 MPG combined) across 7 listed configurations.
Overview
- Body class
- Small Pickup Trucks, Standard Pickup Trucks
- Drive
- Rear-Wheel Drive, 4-Wheel or All-Wheel Drive
- Engine
- 4-cyl, 2.5 L; 6-cyl, 2.8 L; 6-cyl, 4.3 L
- Fuel type
- Regular Gasoline
- Combined MPG
- 16–22 MPG
- Annual fuel cost
- $3,050–$4,200
- Configurations
- 7
MPG & fuel economy
City, highway and combined values below are EPA estimates. Where a powertrain has several configurations, the table shows the lowest–highest reported value. Electric configurations use MPGe.
| Powertrain | City | Highway | Combined | Annual fuel cost | CO2 |
|---|---|---|---|---|---|
| 6-cyl 4.3 L · Regular Gasoline · 4-Wheel or All-Wheel Drive | 14–15 | 19–20 | 16–17 | $3,950–$4,200 | — |
| 4-cyl 2.5 L · Regular Gasoline · Rear-Wheel Drive | 19–21 | 25–26 | 21–22 | $3,050–$3,200 | — |
| 6-cyl 2.8 L · Regular Gasoline · Rear-Wheel Drive | 17 | 23 | 19 | $3,550 | — |
| 6-cyl 4.3 L · Regular Gasoline · Rear-Wheel Drive | 15–16 | 22 | 18 | $3,700 | — |
Configurations & engine comparison
Each row is one configuration/engine combination reported by the EPA for this model year. Missing EPA values are shown as —.
| Configuration / engine | Drive | Transmission | Cyl. | Displ. (L) | Fuel type | City | Hwy | Comb. | Annual cost |
|---|---|---|---|---|---|---|---|---|---|
| Sonoma 2WD | Rear-Wheel Drive | Automatic 4-spd | 4 | 2.5 | Regular Gasoline | 19 | 26 | 21 | $3,200 |
| Sonoma 2WD | Rear-Wheel Drive | Automatic 4-spd | 6 | 4.3 | Regular Gasoline | 16 | 22 | 18 | $3,700 |
| Sonoma 2WD | Rear-Wheel Drive | Manual 5-spd | 4 | 2.5 | Regular Gasoline | 21 | 25 | 22 | $3,050 |
| Sonoma 2WD | Rear-Wheel Drive | Manual 5-spd | 6 | 2.8 | Regular Gasoline | 17 | 23 | 19 | $3,550 |
| Sonoma 2WD | Rear-Wheel Drive | Manual 5-spd | 6 | 4.3 | Regular Gasoline | 15 | 22 | 18 | $3,700 |
| Sonoma 4WD | 4-Wheel or All-Wheel Drive | Automatic 4-spd | 6 | 4.3 | Regular Gasoline | 15 | 20 | 17 | $3,950 |
| Sonoma 4WD | 4-Wheel or All-Wheel Drive | Manual 5-spd | 6 | 4.3 | Regular Gasoline | 14 | 19 | 16 | $4,200 |
Frequently asked questions
What is the combined MPG of the 1991 GMC Sonoma?
According to EPA data, the 1991 GMC Sonoma is rated at 16–22 MPG combined for its conventional-fuel configurations.
How many cylinders does the 1991 GMC Sonoma have?
The EPA data lists 4 and 6 cylinders across its configurations.
What fuel type does the 1991 GMC Sonoma use?
It uses Regular Gasoline.
What is the annual fuel cost of the 1991 GMC Sonoma?
The EPA estimates annual fuel costs ranging from $3,050 to $4,200.