GMC G15/25 Rally 2WD Fuel Economy History
MPG by year — EPA official data.
Best MPG Year
1984
19 MPG combined
Latest Model
1992
16 MPG combined
| Year | Engine | City | Hwy | Combined | Fuel Cost/yr | |
|---|---|---|---|---|---|---|
| 1992 | Diesel Diesel | 14 | 18 | 16 | $5,300 | Details → |
| 1991 | Diesel Diesel | 15 | 20 | 17 | $5,000 | Details → |
| 1990 | Diesel Diesel | 15 | 20 | 17 | $5,000 | Details → |
| 1989 | Diesel Diesel | 16 | 20 | 18 | $4,700 | Details → |
| 1988 | Diesel Diesel | 16 | 20 | 18 | $4,700 | Details → |
| 1987 | Diesel Diesel | 16 | 21 | 18 | $4,700 | Details → |
| 1986 | Diesel Diesel | 16 | 22 | 18 | $4,700 | Details → |
| 1985 | Diesel Diesel | 15 | 22 | 18 | $4,700 | Details → |
| 1984 | Diesel Diesel | 18 | 20 | 19 | $4,450 | Details → |