Cadillac Brougham/DeVille (RWD) MPG and Fuel Economy

Cadillac have been manufacturing models of Brougham/DeVille (RWD) for 1 year, with the latest vehicle in 1984 having a combined MPG of 16.

The estimated fuel cost for the 1984 Cadillac Brougham/DeVille (RWD) is $3,900 per year.

Government regulators have estimated that value based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

💵 Compared to an average vehicle over 5 years, you will spend $8,000 more on fuel driving a 1984 Cadillac Brougham/DeVille (RWD).

🛢 The Cadillac Brougham/DeVille (RWD) will consume roughly 19 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.

💨 For every mile driven, the Cadillac Brougham/DeVille (RWD) will emit -1 grams of CO2, which is about -15,000 grams of CO2 per year.

🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 1 tree would be needed to offset emissions from the Cadillac Brougham/DeVille (RWD).

The table below is a complete list of the 1 Cadillac Brougham/DeVille (RWD) fuel efficiency specifications we have data for.

Click any vehicle link to see a more detailed breakdown of the car, miles per gallon, emissions, and more.

VehicleCombined MPGFuel Cost
1984 Cadillac Brougham/DeVille (RWD)16$3,900

Link To or Reference This Page

If you use this page in your research, please reference MPG Buddy as the source.

  • "Cadillac Brougham/DeVille (RWD) MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/cadillac/brougham-deville-rwd.

  • "Cadillac Brougham/DeVille (RWD) MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/cadillac/brougham-deville-rwd. Accessed January 3, 2026.

  • Cadillac Brougham/DeVille (RWD) MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/cadillac/brougham-deville-rwd.