1988 GMC Suburban Specs, MPG & Trims
EPA fuel-economy data and specifications for the 1988 GMC Suburban (11–17 MPG combined) across 5 listed configurations.
Overview
- Body class
- Special Purpose Vehicle 2WD, Special Purpose Vehicles
- Drive
- Rear-Wheel Drive, 4-Wheel or All-Wheel Drive
- Transmissions
- Automatic 4-spd, Manual 4-spd
- Engine
- 8-cyl, 5.7 L; 8-cyl, 6.2 L
- Fuel type
- Regular Gasoline, Diesel
- Combined MPG
- 11–17 MPG
- Annual fuel cost
- $5,150–$6,100
- 5-year fuel cost
- −$18,500 to −$13,750 more than average
- Configurations
- 5
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 | 20 | 16 | $6,000 | — |
| 8-cyl 6.2 L · Diesel · Rear-Wheel Drive | 15 | 21 | 17 | $5,650 | — |
| 8-cyl 5.7 L · Regular Gasoline · 4-Wheel or All-Wheel Drive | 11 | 13–15 | 11–13 | $5,150–$6,100 | — |
| 8-cyl 5.7 L · Regular Gasoline · Rear-Wheel Drive | 11 | 17 | 13 | $5,150 | — |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R15 Suburban 2WD | Rear-Wheel Drive | Automatic 4-spd | 8 | 5.7 | Regular Gasoline | 11 | 17 | 13 | $5,150 | −$13,750 | — | — |
| R15 Suburban 2WD | Rear-Wheel Drive | Automatic 4-spd | 8 | 6.2 | Diesel | 15 | 21 | 17 | $5,650 | −$16,250 | — | — |
| V15 Suburban 4WD | 4-Wheel or All-Wheel Drive | Automatic 4-spd | 8 | 5.7 | Regular Gasoline | 11 | 15 | 13 | $5,150 | −$13,750 | — | — |
| V15 Suburban 4WD | 4-Wheel or All-Wheel Drive | Automatic 4-spd | 8 | 6.2 | Diesel | 15 | 20 | 16 | $6,000 | −$18,000 | — | — |
| V15 Suburban 4WD | 4-Wheel or All-Wheel Drive | Manual 4-spd | 8 | 5.7 | Regular Gasoline | 11 | 13 | 11 | $6,100 | −$18,500 | — | — |
Frequently asked questions
What is the combined MPG of the 1988 GMC Suburban?
According to EPA data, the 1988 GMC Suburban is rated at 11–17 MPG combined for its conventional-fuel configurations.
How many cylinders does the 1988 GMC Suburban have?
The EPA data lists 8 cylinders for this vehicle.
What fuel type does the 1988 GMC Suburban use?
It is offered with Regular Gasoline and Diesel.
What is the annual fuel cost of the 1988 GMC Suburban?
The EPA estimates annual fuel costs ranging from $5,150 to $6,100.
How much will the 1988 GMC Suburban cost in fuel over 5 years?
According to EPA estimates, the 1988 GMC Suburban 5-year fuel-cost difference is −$18,500 to −$13,750 relative to the average new vehicle (negative values mean the vehicle costs more than average).