Cadillac Fleetwood/DeVille ( ) MPG by year — every rating on record
The Cadillac Fleetwood/DeVille ( ) has a combined EPA fuel economy rating for 2 model years, from 1984 to 1985. Across those years its best rated version returned 24 mpg (1984) and its thirstiest returned 18 mpg (1985). The EPA record holds 5 configurations for this nameplate, most recently a Large Cars.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 1984 | 1 | 24 mpg | 24 mpg | #2 of 14 (92th pct) | Rear-Wheel Drive | Diesel | Large Cars |
| 1985 | 4 | 23 mpg | 18 mpg | #2 of 13 (92th pct) | Front-Wheel Drive | Regular, Diesel | Large Cars |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Cadillac Fleetwood/DeVille ( ) placed highest in 1984 at #2 of 14, and lowest in 1984 at #2 of 14. It spent 2 of its 2 ranked years in the top half of its class.
Every configuration on record
All 5 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 1985 | 4.1L 8-cyl Front-Wheel Drive Automatic 4-spd Regular | (FFS) CA model | 15 | 22 | 18 | 638.9 | 16.5 | $3,450 | 493.72222222222223 | n/a |
| 1985 | 4.1L 8-cyl Front-Wheel Drive Automatic 4-spd Regular | (FFS) | 15 | 22 | 18 | 638.9 | 16.5 | $3,450 | 493.72222222222223 | n/a |
| 1985 | 4.3L 6-cyl Front-Wheel Drive Automatic 4-spd Diesel | CA model, Diesel | 19 | 29 | 23 | 500.0 | 15.5 | $3,900 | 442.60869565217394 | n/a |
| 1985 | 4.3L 6-cyl Front-Wheel Drive Automatic 4-spd Diesel | 4.3L 6-cyl, Diesel | 19 | 29 | 23 | 500.0 | 15.5 | $3,900 | 442.60869565217394 | n/a |
| 1984 | 4.3L 6-cyl Rear-Wheel Drive Automatic 4-spd Diesel | (DIESEL) CA model, Diesel | 21 | 31 | 24 | 479.2 | 14.9 | $3,750 | 424.1666666666667 | n/a |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 0 of 1 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 1984 → 1985 | 24 → 23 mpg | -1 mpg | 500 gal |
What Fleetwood/DeVille ( ) fuel costs over a year
At the EPA's 11,500 miles a year, the 1985 Cadillac Fleetwood/DeVille ( ) burns 500 to 639 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $1,500 | $1,917 | $417 |
| $3.50/gal | $1,750 | $2,236 | $486 |
| $4.00/gal | $2,000 | $2,556 | $556 |
EPA’s own estimate for the 1985 model year is $3,450 to $3,900 a year in fuel, or $6,000 more than the average new vehicle over five years.
How it compares with other Large Cars
Across the 305 nameplates EPA classifies as Large Cars, the median best combined rating is 21 mpg. At 23 mpg the Cadillac Fleetwood/DeVille ( ) is 2 mpg better the median, which is worth about $167 a year at $3.50 a gallon.
- All Large Cars rankings — every nameplate in the class, best to worst.
Other Cadillac nameplates
Every Cadillac model compared → — all nameplates ranked by best combined rating, with what each one costs a year.