1987 Dodge Diplomat MPG and Fuel Economy

On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 1987 Dodge Diplomat.

The 1987 Dodge Diplomat has 3 model options: Automatic 3-spd 8-cyl, 5.2 L, Automatic 3-spd 8-cyl, 5.2 L and Automatic 3-spd 8-cyl, 5.2 L.

The 1987 Dodge Diplomat Automatic 3-spd 8-cyl, 5.2 L runs on premium gasoline and is in the Midsize Cars car class.

The 1987 Dodge Diplomat Automatic 3-spd 8-cyl, 5.2 L runs on regular gasoline and is in the Midsize Cars car class.

The 1987 Dodge Diplomat Automatic 3-spd 8-cyl, 5.2 L runs on regular gasoline and is in the Midsize Cars car class.

🛣 How Many Miles per Gallon (MPG) Does a 1987 Dodge Diplomat Get?

Across all models, the combined average MPG for the 1987 Dodge Diplomat is 14 miles per gallon.

The table below breaks down the MPG for each model option:

Model OptionCombined MPGCity MPGHighway MPG
Automatic 3-spd 8-cyl, 5.2 L171520
Automatic 3-spd 8-cyl, 5.2 L141316
Automatic 3-spd 8-cyl, 5.2 L121114

💵 What is the Average Yearly Fuel Cost for a 1987 Dodge Diplomat?

The average fuel costs for all models of the 1987 Dodge Diplomat is $4,667.

The average fuel costs have been estimated by government regulators based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

Comparing a 1987 Dodge Diplomat to an average vehicle over 5 years, you will spend $11,833 more on fuel.

The table below shows the fuel costs and 5-year save/spend for each model option:

Model OptionFuel Cost5-Year Save/Spend
Automatic 3-spd 8-cyl, 5.2 L$4,350spend $10,250 more
Automatic 3-spd 8-cyl, 5.2 L$4,450spend $10,750 more
Automatic 3-spd 8-cyl, 5.2 L$5,200spend $14,500 more

The 1987 Dodge Diplomat is also subject to the Gas Guzzler Tax, which is a federal tax on vehicles that has a combined MPG of less than 22.5.

The tables below show how much you can expect to pay in Gas Guzzler taxes.

Model OptionGas Guzzler Tax
Automatic 3-spd 8-cyl, 5.2 L$3,000

🛢 How Many Barrels of Petroleum Does a 1987 Dodge Diplomat Consume?

Across all models, the average number barrels of petroleum that the 1987 Dodge Diplomat will consume in one year is 21 barrels.

The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.

Model OptionBarrels
Automatic 3-spd 8-cyl, 5.2 L18
Automatic 3-spd 8-cyl, 5.2 L21
Automatic 3-spd 8-cyl, 5.2 L25

💨 How Many Grams of CO2 Does a 1987 Dodge Diplomat Emit?

The 1987 Dodge Diplomat will emit an average of 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 1987 Dodge Diplomat.

Overview

The tables below cover all of the miles per gallon, engine specifications, and emission details we have for the 3 1987 Dodge Diplomat model options.

Automatic 3-spd 8-cyl, 5.2 L

The table below contains all of the details we have for the 1987 Dodge Diplomat Automatic 3-spd 8-cyl, 5.2 L:

City MPG15
Highway MPG20
Combined MPG17
Save/Spend vs Average CarSpend $10,250
Gas Guzzler Tax$3,000
Fuel Cost$4,350
Fuel Type 1Premium
Barrels of Petroleum18
Grams of CO2-15,000
Trees Needed to Offset-1
DriveRear-Wheel Drive
Cylinders8
Displacement5.2
TransmissionAutomatic 3-spd
Vehicle ClassMidsize Cars
Start/Stop?No
Supercharged?No
Turbocharged?No

Automatic 3-spd 8-cyl, 5.2 L

The table below contains all of the details we have for the 1987 Dodge Diplomat Automatic 3-spd 8-cyl, 5.2 L:

City MPG13
Highway MPG16
Combined MPG14
Save/Spend vs Average CarSpend $10,750
Fuel Cost$4,450
Fuel Type 1Regular
Barrels of Petroleum21
Grams of CO2-15,000
Trees Needed to Offset-1
DriveRear-Wheel Drive
Cylinders8
Displacement5.2
TransmissionAutomatic 3-spd
Vehicle ClassMidsize Cars
Start/Stop?No
Supercharged?No
Turbocharged?No

Automatic 3-spd 8-cyl, 5.2 L

The table below contains all of the details we have for the 1987 Dodge Diplomat Automatic 3-spd 8-cyl, 5.2 L:

City MPG11
Highway MPG14
Combined MPG12
Save/Spend vs Average CarSpend $14,500
Fuel Cost$5,200
Fuel Type 1Regular
Barrels of Petroleum25
Grams of CO2-15,000
Trees Needed to Offset-1
DriveRear-Wheel Drive
Cylinders8
Displacement5.2
TransmissionAutomatic 3-spd
Vehicle ClassMidsize Cars
Start/Stop?No
Supercharged?No
Turbocharged?No

Link To or Reference This Page

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

  • "1987 Dodge Diplomat MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/dodge/diplomat/1987.

  • "1987 Dodge Diplomat MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/dodge/diplomat/1987. Accessed January 3, 2026.

  • 1987 Dodge Diplomat MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/dodge/diplomat/1987.