Dodge Diplomat MPG and Fuel Economy

Dodge have been manufacturing models of Diplomat for 6 years, with the latest vehicle in 1989 having a combined MPG of 14.

The estimated fuel cost for the 1989 Dodge Diplomat is $5,300 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 $15,000 more on fuel driving a 1989 Dodge Diplomat.

🛢 The Dodge Diplomat will consume roughly 21 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.

💨 For every mile driven, the Dodge Diplomat 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 Dodge Diplomat.

The table below is a complete list of the 6 Dodge Diplomat 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
1989 Dodge Diplomat14$5,300
1988 Dodge Diplomat15$4,950
1987 Dodge Diplomat17$4,350
1986 Dodge Diplomat15$4,150
1985 Dodge Diplomat16$4,600
1984 Dodge Diplomat15$4,150

Link To or Reference This Page

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

  • "Dodge Diplomat MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/dodge/diplomat.

  • "Dodge Diplomat MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/dodge/diplomat. Accessed January 3, 2026.

  • Dodge Diplomat MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/dodge/diplomat.