1984 AM General FJ8c Post Office: 4.2L · 3-speed automatic
One configuration of the 1984 AM General FJ8c Post Office as listed by our sources. Every figure below carries its source.
| Specification | Value | Source |
|---|---|---|
| Engine | 4.2L 6-cylinder ((FFS) CA model) | EPA fueleconomy.gov |
| Displacement | 4.2 L | EPA fueleconomy.gov |
| Cylinders | 6 | EPA fueleconomy.gov |
| Fuel type | Gasoline | EPA fueleconomy.gov |
| Transmission | 3-speed automatic | EPA fueleconomy.gov |
| Combined economy | 13 mpg (18.1 L/100 km) | EPA fueleconomy.gov |
| City economy | 13 mpg (18.1 L/100 km) | EPA fueleconomy.gov |
| Highway economy | 13 mpg (18.1 L/100 km) | EPA fueleconomy.gov |
Provenance & verification
- EPA fueleconomy.gov · US Government public data
Source checked: October 24, 2026
Data verified: October 24, 2026