
The following table compares the fuel economies of different models of Dodge Diplomat cars, across model years.
The annual fuel costs (shown in the right-hand columns) are calculated based on an estimated annual mileage of 15,000 miles,
of which 55% of the miles are city driving, and 45% of the miles are highway driving.
Annual Cost 1 assumes a fuel cost of $5.00 per gallon, while Annual Cost 2 assumes a fuel cost of $6.00 per gallon.
| Model Year | Transmission | Cyl. | Combined MPG | City MPG |
Highway MPG |
Annual Cost 1 |
Annual Cost 2 |
|---|---|---|---|---|---|---|---|
| 1989 Diplomat | Automatic 3-speed | 8 | 14 | 13 | 17 | $5,158 | $6,190 |
| 1989 Diplomat | Automatic 3-speed | 8 | 17 | 15 | 20 | $4,437 | $5,325 |
| 1989 Diplomat | Automatic 3-speed | 8 | 12 | 11 | 14 | $6,160 | $7,392 |
| 1988 Diplomat | Automatic 3-speed | 8 | 15 | 14 | 18 | $4,821 | $5,785 |
| 1988 Diplomat | Automatic 3-speed | 8 | 18 | 16 | 21 | $4,185 | $5,022 |
| 1988 Diplomat | Automatic 3-speed | 8 | 12 | 11 | 14 | $6,160 | $7,392 |
| 1987 Diplomat | Automatic 3-speed | 8 | 17 | 15 | 20 | $4,437 | $5,325 |
| 1987 Diplomat | Automatic 3-speed | 8 | 14 | 13 | 16 | $5,282 | $6,338 |
| 1987 Diplomat | Automatic 3-speed | 8 | 12 | 11 | 14 | $6,160 | $7,392 |
| 1986 Diplomat | Automatic 3-speed | 8 | 15 | 14 | 16 | $5,055 | $6,066 |
| 1986 Diplomat | Automatic 3-speed | 8 | 16 | 15 | 20 | $4,437 | $5,325 |
| 1986 Diplomat | Automatic 3-speed | 8 | 12 | 11 | 14 | $6,160 | $7,392 |
| 1985 Diplomat | Automatic 3-speed | 8 | 16 | 15 | 19 | $4,526 | $5,431 |
| 1985 Diplomat | Automatic 3-speed | 8 | 17 | 15 | 20 | $4,437 | $5,325 |
| 1985 Diplomat | Automatic 3-speed | 8 | 12 | 11 | 14 | $6,160 | $7,392 |
| 1984 Diplomat | Automatic 3-speed | 8 | 15 | 14 | 18 | $4,821 | $5,785 |
| 1984 Diplomat | Automatic 3-speed | 8 | 13 | 12 | 15 | $5,687 | $6,825 |
| 1984 Diplomat | Automatic 3-speed | 8 | 15 | 14 | 18 | $4,821 | $5,785 |
Data source: Fuel Economy USA, Reference.