1991 GMC K2500 Sierra Specs, MPG & Trims
EPA fuel-economy data and specifications for the 1991 GMC K2500 Sierra (12–17 MPG combined) across 12 listed configurations.
Overview
- Body class
- Standard Pickup Trucks
- Drive
- 4-Wheel or All-Wheel Drive
- Transmissions
- Automatic 4-spd, Manual 4-spd, Manual 5-spd
- Engine
- 6-cyl, 4.3 L; 8-cyl, 5.0 L; 8-cyl, 5.7 L; 8-cyl, 6.2 L
- Fuel type
- Regular Gasoline, Diesel
- Combined MPG
- 12–17 MPG
- Annual fuel cost
- $4,200–$6,000
- 5-year fuel cost
- −$18,000 to −$9,000 more than average
- Configurations
- 12
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 |
|---|---|---|---|---|---|
| 8-cyl 6.2 L · Diesel · 4-Wheel or All-Wheel Drive | 15 | 17–20 | 16–17 | $5,650–$6,000 | — |
| 6-cyl 4.3 L · Regular Gasoline · 4-Wheel or All-Wheel Drive | 14–15 | 16–18 | 15–16 | $4,200–$4,450 | — |
| 8-cyl 5.0 L · Regular Gasoline · 4-Wheel or All-Wheel Drive | 12 | 16–17 | 14 | $4,800 | — |
| 8-cyl 5.7 L · Regular Gasoline · 4-Wheel or All-Wheel Drive | 11 | 13–15 | 12–13 | $5,150–$5,600 | — |
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 | 5-YR COST | FE | GHG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| K2500 Sierra 4WD | 4-Wheel or All-Wheel Drive | Automatic 4-spd | 6 | 4.3 | Regular Gasoline | 14 | 18 | 15 | $4,450 | −$10,250 | — | — |
| K2500 Sierra 4WD | 4-Wheel or All-Wheel Drive | Automatic 4-spd | 8 | 5.0 | Regular Gasoline | 12 | 16 | 14 | $4,800 | −$12,000 | — | — |
| K2500 Sierra 4WD | 4-Wheel or All-Wheel Drive | Automatic 4-spd | 8 | 5.7 | Regular Gasoline | 11 | 15 | 13 | $5,150 | −$13,750 | — | — |
| K2500 Sierra 4WD | 4-Wheel or All-Wheel Drive | Automatic 4-spd | 8 | 6.2 | Diesel | 15 | 20 | 17 | $5,650 | −$16,250 | — | — |
| K2500 Sierra 4WD | 4-Wheel or All-Wheel Drive | Manual 4-spd | 6 | 4.3 | Regular Gasoline | 14 | 16 | 15 | $4,450 | −$10,250 | — | — |
| K2500 Sierra 4WD | 4-Wheel or All-Wheel Drive | Manual 4-spd | 8 | 5.7 | Regular Gasoline | 11 | 13 | 12 | $5,600 | −$16,000 | — | — |
| K2500 Sierra 4WD | 4-Wheel or All-Wheel Drive | Manual 4-spd | 8 | 6.2 | Diesel | 15 | 17 | 16 | $6,000 | −$18,000 | — | — |
| K2500 Sierra 4WD | 4-Wheel or All-Wheel Drive | Manual 5-spd | 6 | 4.3 | Regular Gasoline | 15 | 18 | 16 | $4,200 | −$9,000 | — | — |
| K2500 Sierra 4WD | 4-Wheel or All-Wheel Drive | Manual 5-spd | 6 | 4.3 | Regular Gasoline | 15 | 17 | 16 | $4,200 | −$9,000 | — | — |
| K2500 Sierra 4WD | 4-Wheel or All-Wheel Drive | Manual 5-spd | 8 | 5.0 | Regular Gasoline | 12 | 17 | 14 | $4,800 | −$12,000 | — | — |
| K2500 Sierra 4WD | 4-Wheel or All-Wheel Drive | Manual 5-spd | 8 | 5.7 | Regular Gasoline | 11 | 15 | 13 | $5,150 | −$13,750 | — | — |
| K2500 Sierra 4WD | 4-Wheel or All-Wheel Drive | Manual 5-spd | 8 | 5.7 | Regular Gasoline | 11 | 15 | 12 | $5,600 | −$16,000 | — | — |
Frequently asked questions
What is the combined MPG of the 1991 GMC K2500 Sierra?
According to EPA data, the 1991 GMC K2500 Sierra is rated at 12–17 MPG combined for its conventional-fuel configurations.
How many cylinders does the 1991 GMC K2500 Sierra have?
The EPA data lists 6 and 8 cylinders across its configurations.
What fuel type does the 1991 GMC K2500 Sierra use?
It is offered with Regular Gasoline and Diesel.
What is the annual fuel cost of the 1991 GMC K2500 Sierra?
The EPA estimates annual fuel costs ranging from $4,200 to $6,000.
How much will the 1991 GMC K2500 Sierra cost in fuel over 5 years?
According to EPA estimates, the 1991 GMC K2500 Sierra 5-year fuel-cost difference is −$18,000 to −$9,000 relative to the average new vehicle (negative values mean the vehicle costs more than average).