Buick · 1984–1985 · Diesel
Buick Regal Diesel MPG by year
The EPA has rated 2 model years of the Buick Regal Diesel, from 1984 to 1985. The most fuel-efficient year is the 1985, at 23 MPG combined in its best configuration. The 1985 model is 15% more efficient than the median midsize car that year (23 vs. 20 MPG).
Combined MPG by model year
- Regal 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 Regal Diesel model year
| Year | Type | Best combined | City / Hwy | Class median | Range | Configs | Fuel / yr |
|---|---|---|---|---|---|---|---|
| 1985 | Diesel | 23 MPG lowest 21 |
20 / 29 | 20 | — | 2 | $2,413 |
| 1984 | Diesel | 23 MPG lowest 21 |
20 / 29 | 21 | — | 3 | $2,413 |
Fuel cost uses today's default prices for every year so model years compare like for like. Sort any column.
Compare Regal Diesel model years
See how much a newer Regal Diesel would save over an older one.
Models similar to the Buick Regal Diesel
- Pontiac Grand Prix 1984–2008
- Chevrolet Monte Carlo 1984–2007
- Chrysler New Yorker 1985–1993
- Ford LTD 1984–1986
- Mercury Marquis 1984–1986
- Oldsmobile Cutlass Supreme Diesel 1984–1985
- Pontiac Grand Prix Hybrid 1984–1985
- Chevrolet Monte Carlo Hybrid 1984–1988
- Oldsmobile Cutlass Supreme 1984–1997
- Pontiac Bonneville 1984–2005
Other Buick Regal versions
Frequently asked questions
Which Buick Regal Diesel year has the best fuel economy?
The 1984 Buick Regal Diesel, rated up to 23 MPG combined. At 15,000 miles a year with $3.70/gal diesel fuel, that works out to about $2,413 a year.
What is the fuel economy of the latest Buick Regal Diesel?
The 1985 Buick Regal Diesel is rated up to 23 MPG combined.