1992 · Full-Size Pickup · Diesel
1992 GMC C2500 Sierra Diesel MPG & fuel economy
The 1992 GMC C2500 Sierra Diesel is a full-size pickup offered in 2 EPA-rated configurations. The most efficient version returns 19 MPG combined (17 city / 22 highway) on diesel. Across the lineup, combined ratings range from 18 to 19 MPG. Efficiency is unchanged from the 1991 model. Among 27 full-size pickups rated for 1992, it ranks 16th for lowest fuel cost. At 15,000 miles a year with $3.70/gal diesel fuel, it costs about $2,921 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 1992 GMC C2500 Sierra Diesel's fuel average is 8.1 km/L (12.4 L/100 km), or 19 MPG combined: 7.2 km/L in the city and 9.4 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 17 | 7.2 | 13.8 |
| Highway | 22 | 9.4 | 10.7 |
| Combined | 19 | 8.1 | 12.4 |
How it ranks among 1992 Full-Size Pickups
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
C2500 Sierra Diesel MPG across model years
Full history →2 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 6.2L 8-cyl · 5-speed manual C2500 Sierra 2WD |
Diesel | 17 MPG | 22 MPG | 19 MPG | — | $2,921 |
| RWD · 6.2L 8-cyl · 4-speed automatic C2500 Sierra 2WD |
Diesel | 15 MPG | 22 MPG | 18 MPG | — | $3,083 |
Specs (most efficient configuration)
- Fuel
- Diesel
- Engine / motor
- 6.2L 8-cyl
- Transmission
- 5-speed manual
- Drivetrain
- RWD
- Tailpipe CO₂
- 536 g/mi
1992 GMC C2500 Sierra Diesel vs. rivals
Compare the 1992 C2500 Sierra Diesel
With any other car from any year, including other C2500 Sierra Diesel model years. Type a year to jump, e.g. "2015 Accord".
Same year, other powertrains: 1992 GMC C2500 Sierra (17 MPG)
Frequently asked questions
What is the gas mileage of the 1992 GMC C2500 Sierra Diesel?
Up to 19 MPG combined (17 city / 22 highway); ratings range from 18 to 19 MPG depending on configuration.
What fuel does the 1992 GMC C2500 Sierra Diesel use?
Diesel.
What is the fuel average in km/L for the 1992 GMC C2500 Sierra Diesel?
The 1992 GMC C2500 Sierra Diesel's fuel average is 8.1 km/L (12.4 L/100 km), or 19 MPG combined: 7.2 km/L in the city and 9.4 km/L on the highway.
How much does it cost to fuel the 1992 GMC C2500 Sierra Diesel per year?
About $2,921 at 15,000 miles a year with $3.70/gal diesel fuel, or $19.47 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.