1986 Dodge Diplomat
US · Midsize Cars
The 1986 Dodge Diplomat is listed in the US market with gasoline power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.
- Engine
- Varies by configuration: 5.2L 8-cylinder (POLICE) (FFS), 5.2L 8-cylinder (GUZZLER) (FFS)
- Transmission
- 3-speed automatic
- Drivetrain
- RWD
- Fuel
- Gasoline
- Economy
- 12 mpg (19.6 L/100 km) to 16 mpg (14.7 L/100 km) combined
Key Figures
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 5.2L 8-cylinder (POLICE) (FFS), 5.2L 8-cylinder (GUZZLER) (FFS) | |
| Displacement | 5.2 L | |
| Cylinders | 8 | |
| Fuel type | Gasoline | EPA fueleconomy.gov |
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Automatic | EPA fueleconomy.gov |
| Gears | 3 | |
| Drivetrain | RWD | EPA fueleconomy.gov |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 12 mpg (19.6 L/100 km) to 16 mpg (14.7 L/100 km) | EPA fueleconomy.gov |
| City | 11 mpg (21.4 L/100 km) to 15 mpg (15.7 L/100 km) | |
| Highway | 14 mpg (16.8 L/100 km) to 20 mpg (11.8 L/100 km) |
Our sources do not publish these for this vehicle: Aspiration, Power, Torque, Electric range, Battery capacity. We leave them out instead of estimating.
Trims and configurations
3 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.
Recalls
NHTSA lists 1 recall campaign for this model year. Last checked November 8, 2026.
86V053000: ELECTRICAL SYSTEM:12V/24V/48V BATTERY
BATTERY CAP VENTS MAY BE PARTIALLY OR COMPLETELY BLOCKED WITH PLASTIC FLASHING. CONSEQUENCE OF DEFECT: A BUILD UP OF INTERNAL GAS PRESSURE COULD OCCUR WHICH COULD RESULT IN CASE RUPTURE, PARTICULARLY DURING POST CHARGING. SHOULD A PERSON BE IN THE…
Remedy: REWORK BATTERIES BY PROBING BOTH VENT ORIFICES TO ELIMINATE ANY VENT OBSTRUCTION.
Reported April 10, 1986. View on NHTSA
Data sources
- EPA fueleconomy.gov · retrieved October 23, 2026 · US Government public data
- NHTSA vPIC · retrieved October 23, 2026 · US Government public data
Source checked: October 23, 2026
Data verified: October 24, 2026
Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.
Related vehicles
- 1985 Dodge Diplomat
Gasoline
Varies by configuration: 5.2L 8-cylinder ((FFS) CA model), 5.2L 8-cylinder ((FFS)), 5.2L 8-cylinder ((POLICE) (FFS)) · RWD
17 mpg (13.8 L/100 km) to 12 mpg (19.6 L/100 km) - 1987 Dodge Diplomat
Gasoline
Varies by configuration: 5.2L 8-cylinder ((GUZZLER) (FFS)), 5.2L 8-cylinder ((POLICE) (FFS) 2 barrel carb), 5.2L 8-cylinder ((POLICE) (FFS) 4 barrel carb) · RWD
17 mpg (13.8 L/100 km) to 12 mpg (19.6 L/100 km)
Frequently asked questions
What engine does the 1986 Dodge Diplomat have?
Varies by configuration: 5.2L 8-cylinder ((POLICE) (FFS)), 5.2L 8-cylinder ((GUZZLER) (FFS)). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 1986 Dodge Diplomat?
Combined fuel economy is 12 mpg (19.6 L/100 km) to 16 mpg (14.7 L/100 km), as published by the source shown in the specification table.
Is the 1986 Dodge Diplomat front-wheel, rear-wheel or all-wheel drive?
Drivetrain: RWD.
Are there recalls for the 1986 Dodge Diplomat?
NHTSA lists 1 recall campaign for this model year (last checked November 8, 2026). Details are in the Recalls section.