Buick Riviera Fuel Economy History
MPG by year — EPA official data.
Best MPG Year
1996
21 MPG combined
Latest Model
1999
19 MPG combined
| Year | Engine | City | Hwy | Combined | Fuel Cost/yr | |
|---|---|---|---|---|---|---|
| 1999 | Premium | 16 | 25 | 19 | $4,300 | Details → |
| 1998 | Regular | 16 | 25 | 19 | $3,550 | Details → |
| 1997 | Regular | 17 | 26 | 20 | $3,400 | Details → |
| 1996 | Regular | 17 | 27 | 21 | $3,200 | Details → |
| 1995 | Regular | 17 | 26 | 20 | $3,400 | Details → |
| 1993 | Regular | 17 | 25 | 20 | $3,400 | Details → |
| 1992 | Regular | 16 | 24 | 19 | $3,550 | Details → |
| 1991 | Regular | 16 | 24 | 19 | $3,550 | Details → |
| 1990 | Regular | 16 | 25 | 19 | $3,550 | Details → |
| 1989 | Regular | 17 | 26 | 20 | $3,400 | Details → |
| 1988 | Regular | 17 | 26 | 20 | $3,400 | Details → |
| 1987 | Regular | 16 | 25 | 19 | $3,550 | Details → |
| 1986 | Regular | 17 | 27 | 20 | $3,400 | Details → |
| 1985 | Diesel Diesel | 18 | 26 | 21 | $4,050 | Details → |
| 1984 | Diesel Diesel | 18 | 26 | 21 | $4,050 | Details → |