1984 · Large Car · Diesel
1984 Oldsmobile Ninety-Eight Diesel MPG & fuel economy
The 1984 Oldsmobile Ninety-Eight Diesel is a large car with one EPA-rated configuration. The most efficient version returns 21 MPG combined (18 city / 26 highway) on diesel. Among 23 large cars rated for 1984, it ranks 5th for lowest fuel cost. At 15,000 miles a year with $3.70/gal diesel fuel, it costs about $2,643 a year to fuel.
What will it cost you?
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Fuel average
The 1984 Oldsmobile Ninety-Eight Diesel's fuel average is 8.9 km/L (11.2 L/100 km), or 21 MPG combined: 7.7 km/L in the city and 11.1 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 18 | 7.7 | 13.1 |
| Highway | 26 | 11.1 | 9.0 |
| Combined | 21 | 8.9 | 11.2 |
How it ranks among 1984 Large Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
1 EPA-rated configuration
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| — · 5.7L 8-cyl · 4-speed automatic Ninety-Eight |
Diesel | 18 MPG | 26 MPG | 21 MPG | — | $2,643 |
Specs (most efficient configuration)
- Fuel
- Diesel
- Engine / motor
- 5.7L 8-cyl
- Transmission
- 4-speed automatic
- Drivetrain
- —
- Passenger volume
- 112 cu ft
- Cargo volume
- 20 cu ft
- Tailpipe CO₂
- 485 g/mi
1984 Oldsmobile Ninety-Eight Diesel vs. rivals
Compare the 1984 Ninety-Eight Diesel
With any other car from any year, including other Ninety-Eight Diesel model years. Type a year to jump, e.g. "2015 Accord".
Same year, other powertrains: 1984 Oldsmobile Ninety-Eight (16 MPG)
Frequently asked questions
What is the gas mileage of the 1984 Oldsmobile Ninety-Eight Diesel?
Up to 21 MPG combined (18 city / 26 highway).
What fuel does the 1984 Oldsmobile Ninety-Eight Diesel use?
Diesel.
What is the fuel average in km/L for the 1984 Oldsmobile Ninety-Eight Diesel?
The 1984 Oldsmobile Ninety-Eight Diesel's fuel average is 8.9 km/L (11.2 L/100 km), or 21 MPG combined: 7.7 km/L in the city and 11.1 km/L on the highway.
How much does it cost to fuel the 1984 Oldsmobile Ninety-Eight Diesel per year?
About $2,643 at 15,000 miles a year with $3.70/gal diesel fuel, or $17.62 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.