1984 Oldsmobile Ninety-Eight II
US · Large Cars
The 1984 Oldsmobile Ninety-Eight II is listed in the US market with diesel power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.
- Engine
- 4.3L 6-cylinder (DIESEL) CA model)
- Transmission
- 4-speed automatic
- Fuel
- Diesel
- Economy
- 24 mpg (9.8 L/100 km) combined
Key Figures
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | 4.3L 6-cylinder (DIESEL) CA model) | |
| Displacement | 4.3 L | |
| Cylinders | 6 | |
| Fuel type | Diesel | EPA fueleconomy.gov |
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Automatic | EPA fueleconomy.gov |
| Gears | 4 |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 24 mpg (9.8 L/100 km) | EPA fueleconomy.gov |
| City | 21 mpg (11.2 L/100 km) | |
| Highway | 31 mpg (7.6 L/100 km) |
Our sources do not publish these for this vehicle: Aspiration, Power, Torque, Drivetrain, Electric range, Battery capacity. We leave them out instead of estimating.
Trims and configurations
1 configuration listed by our sources. Engines, drivetrains and fuel economy can differ between them.
Recalls
No recall campaigns were found in NHTSA data at the last check. Last checked November 10, 2026.
Data sources
- EPA fueleconomy.gov · retrieved October 25, 2026 · US Government public data
Source checked: October 25, 2026
Data verified: October 25, 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.
Frequently asked questions
What engine does the 1984 Oldsmobile Ninety-Eight II have?
4.3L 6-cylinder ((DIESEL) CA model). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 1984 Oldsmobile Ninety-Eight II?
Combined fuel economy is 24 mpg (9.8 L/100 km), as published by the source shown in the specification table.
Are there recalls for the 1984 Oldsmobile Ninety-Eight II?
No recall campaigns were found in NHTSA data when we last checked on November 10, 2026. Recall status can change, so confirm with NHTSA or the manufacturer.