Gas Mileage Summary
| City | 17 mpg (13.8 litres/100km) |
|---|---|
| Highway | 23 mpg (10.2 litres/100km) |
| Combined | 19 mpg (12.4 litres/100km) |
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Found 148 of 25217 records in table Fuel Economy Specs
Now Showing 1 of 148 
Current Record: 1991 GMC C1500 SIERRA 2WD #8599
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| Full_name | 1991 GMC C1500 SIERRA 2WD |
|---|---|
| Year | 1991 |
| Make | GMC |
| Model | C1500 SIERRA 2WD |
| Fuel system | FI |
| Engine Size | 380 cubic inches (6.2 litres) |
| Transmission | M5C |
| Drive | Rear wheel drive |
| Class | 12 |
| Fuel type | Diesel |
| Cylinders | 8 |
| Engine id | 4862 |
| Mileage (city) | 20 mpg (11.8 litres/100km) |
| Mileage (hwy) | 25 mpg (9.4 litres/100km) |
| Mileage (combined) | 22 mpg (10.7 litres/100km) |
| Unadj city mpg | 22 |
| Unadj hwy mpg | 32 |
| Unadj combined mpg | 25 |
| Average annual fuel | $819 |
| Engine desc 1 | (DIESEL) |
| Engine desc 2 | (NO-CAT) |
| Overdrive | OD |