Buick · 1984–1985 · Diesel
Buick Riviera Diesel MPG by year
The EPA has rated 2 model years of the Buick Riviera Diesel, from 1984 to 1985. The most fuel-efficient year is the 1985, at 21 MPG combined in its best configuration. The 1985 model is 5% more efficient than the median midsize car that year (21 vs. 20 MPG).
Combined MPG by model year
- Riviera Diesel, most efficient version
- Range across configurations
- Class median
Shaded band: range across that year's configurations. Class median: same-year models in the same class, rated in MPG. Click a point to open that model year; the table below lists every value.
Every Riviera Diesel model year
| Year | Type | Best combined | City / Hwy | Class median | Range | Configs | Fuel / yr |
|---|---|---|---|---|---|---|---|
| 1985 | Diesel | 21 MPG | 18 / 26 | 20 | — | 1 | $2,643 |
| 1984 | Diesel | 21 MPG | 18 / 26 | 21 | — | 1 | $2,643 |
Fuel cost uses today's default prices for every year so model years compare like for like. Sort any column.
Compare Riviera Diesel model years
See how much a newer Riviera Diesel would save over an older one.
Models similar to the Buick Riviera Diesel
- Oldsmobile Toronado Diesel 1984–1985
- Oldsmobile Toronado 1984–1993
- Pontiac Bonneville Hybrid 1984–1985
- Pontiac Grand Prix Hybrid 1984–1985
- Chevrolet Monte Carlo Hybrid 1984–1988
- Oldsmobile Cutlass Supreme 1984–1997
- Chrysler Newport/Fifth Avenue 1984–1989
- Dodge Diplomat 1984–1989
- Plymouth Gran Fury 1984–1989
Other Buick Riviera versions
Frequently asked questions
Which Buick Riviera Diesel year has the best fuel economy?
The 1984 Buick Riviera Diesel, rated up to 21 MPG combined. At 15,000 miles a year with $3.70/gal diesel fuel, that works out to about $2,643 a year.
What is the fuel economy of the latest Buick Riviera Diesel?
The 1985 Buick Riviera Diesel is rated up to 21 MPG combined.