Cadillac · 1984–1985 · Diesel
Cadillac Fleetwood/DeVille Diesel MPG by year
The EPA has rated 2 model years of the Cadillac Fleetwood/DeVille Diesel, from 1984 to 1985. The most fuel-efficient year is the 1984, at 24 MPG combined in its best configuration. The best 1985 model is 4% less efficient than the best 1984 model (23 vs. 24 MPG). The 1985 model is 21% more efficient than the median large car that year (23 vs. 19 MPG).
Combined MPG by model year
- Fleetwood/DeVille 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 Fleetwood/DeVille Diesel model year
| Year | Type | Best combined | City / Hwy | Class median | Range | Configs | Fuel / yr |
|---|---|---|---|---|---|---|---|
| 1985 | Diesel | 23 MPG | 19 / 29 | 19 | — | 1 | $2,413 |
| 1984 | Diesel | 24 MPG | 21 / 31 | 17 | — | 1 | $2,312 |
Fuel cost uses today's default prices for every year so model years compare like for like. Sort any column.
Compare Fleetwood/DeVille Diesel model years
See how much a newer Fleetwood/DeVille Diesel would save over an older one.
Models similar to the Cadillac Fleetwood/DeVille Diesel
Other Cadillac Fleetwood/DeVille versions
Frequently asked questions
Which Cadillac Fleetwood/DeVille Diesel year has the best fuel economy?
The 1984 Cadillac Fleetwood/DeVille Diesel, rated up to 24 MPG combined. At 15,000 miles a year with $3.70/gal diesel fuel, that works out to about $2,312 a year.
Which Cadillac Fleetwood/DeVille Diesel year has the worst fuel economy?
The 1985 model, whose most efficient version is rated 23 MPG combined (about $2,413 a year to fuel).
What is the fuel economy of the latest Cadillac Fleetwood/DeVille Diesel?
The 1985 Cadillac Fleetwood/DeVille Diesel is rated up to 23 MPG combined.