1989 Dodge Diplomat Specs
3 powertrain configurations on federal record for the 1989 Dodge Diplomat: 5.2L 8-cyl Premium Gasoline, rated up to 17 MPG combined by the EPA.
Source: EPA federal records (fueleconomy.gov) · Updated 2026-10-26 · By CarWhere Research
| Engine | Transmission | Drivetrain | City | Highway | Combined |
|---|---|---|---|---|---|
| 5.2L 8-cyl Premium Gasoline | Automatic 3-spd | Rear-Wheel Drive | 13 | 17 | 14 |
| 5.2L 8-cyl Premium Gasoline | Automatic 3-spd | Rear-Wheel Drive | 15 | 20 | 17 |
| 5.2L 8-cyl Premium Gasoline | Automatic 3-spd | Rear-Wheel Drive | 11 | 14 | 12 |
Diplomat by year
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Frequently asked questions
What engines does the 1989 Dodge Diplomat have?
One powertrain on federal record: 5.2L 8-cyl Premium Gasoline, offered with Automatic 3-spd and Rear-Wheel Drive. The full per-configuration table is above.
What gas mileage does the 1989 Dodge Diplomat get?
EPA combined ratings run 12–17 MPG depending on configuration — the table above shows city/highway/combined for each engine, transmission, and drivetrain.
How do I get the specs for my exact VIN?
These are the federal-record configurations for the 1989 Dodge Diplomat overall. For one specific vehicle — its exact engine, trim, factory options, and original window sticker — decode the 17-character VIN free at carwhere.com/tools/vin-decoder.
Where does this data come from?
The U.S. EPA's public vehicle dataset (fueleconomy.gov) — the federal record of every US-market configuration since 1984 — refreshed 2026-10-26. Public-domain data; republish with attribution to CarWhere (carwhere.com).