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.
| Vehicle | Combined MPG | Fuel Cost |
|---|---|---|
| 1989 Dodge Diplomat | 14 | $5,300 |
| 1988 Dodge Diplomat | 15 | $4,950 |
| 1987 Dodge Diplomat | 17 | $4,350 |
| 1986 Dodge Diplomat | 15 | $4,150 |
| 1985 Dodge Diplomat | 16 | $4,600 |
| 1984 Dodge Diplomat | 15 | $4,150 |
Link To or Reference This Page
If you use this page in your research, please reference MPG Buddy as the source.
<a href="https://mpgbuddy.com/cars/dodge/diplomat">Dodge Diplomat MPG and Fuel Economy</a>
"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.