Fuel economy & running costsDiesel
#822 of 836 · Cadillac cars
1984 CadillacBrougham/DeVille (RWD)
Large Cars · Rear-Wheel Drive · 5.7 L 8-cyl
21MPGcombined
18city
26highway
A year of fuel$4,550
CO₂ from the tailpipe484.8 g/mi
Figures from the EPA label (fueleconomy.gov), the same as on the car's window sticker.
Against the 836 cadillac cars
Bars are scaled to the best in the list; the mark shows the list average. Lower is better for fuel cost; higher is better for the rest. All figures are the EPA's.
Summary
1984 Cadillac Brougham/DeVille (RWD) by Cadillac. The figures below are from US EPA fueleconomy.gov, with the page each one came from.
Details
- Model year
- 1984fueleconomy.gov · 3 Oct 2026
Efficiency
- Combined MPG
- 21fueleconomy.gov · 3 Oct 2026
- City MPG
- 18fueleconomy.gov · 3 Oct 2026
- Highway MPG
- 26fueleconomy.gov · 3 Oct 2026
Running cost
- Annual fuel cost
- $4,550fueleconomy.gov · 3 Oct 2026
- CO₂ (tailpipe)
- 484.8 g/mifueleconomy.gov · 3 Oct 2026
Car
- Body
- Carfueleconomy.gov · 3 Oct 2026
- EPA class
- Large Carsfueleconomy.gov · 3 Oct 2026
- Drive
- Rear-Wheel Drivefueleconomy.gov · 3 Oct 2026
Powertrain
- Engine
- 5.7 L 8-cylfueleconomy.gov · 3 Oct 2026
- Transmission
- Automatic 4-spdfueleconomy.gov · 3 Oct 2026
- Fuel
- Dieselfueleconomy.gov · 3 Oct 2026
More cadillac cars
See the list
#1 2027 · Cadillac Escalade 2WD 17Combined MPG $4,850Fuel / year #2 2027 · Cadillac Escalade 4WD 16Combined MPG $5,150Fuel / year #3 2027 · Cadillac Escalade V AWD 13Combined MPG $6,300Fuel / year 
#4 2027 · Cadillac LYRIQ 11kW Charger 326 miEPA range $850Fuel / year #5 2027 · Cadillac LYRIQ 19kW Charger 326 miEPA range $850Fuel / year #6 2027 · Cadillac LYRIQ AWD 11kW Charger 319 miEPA range $850Fuel / year Listed on CarCody
Sources
- fueleconomy.gov/feg/noframes/27058.shtml· checked 3 Oct 2026