1984 · Midsize Car · Diesel
1984 Buick Riviera Diesel MPG & fuel economy
The 1984 Buick Riviera Diesel is a midsize car with one EPA-rated configuration. The most efficient version returns 21 MPG combined (18 city / 26 highway) on diesel. Among 50 midsize cars rated for 1984, it ranks 31st 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?
Your mileage and prices are saved and used across the site.
Fuel average
The 1984 Buick Riviera 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 Midsize Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
Riviera Diesel MPG across model years
Full history →1 EPA-rated configuration
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| — · 5.7L 8-cyl · 4-speed automatic Riviera |
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
- —
- Cargo volume
- 16 cu ft
- Tailpipe CO₂
- 485 g/mi
1984 Buick Riviera Diesel vs. rivals
Compare the 1984 Riviera Diesel
With any other car from any year, including other Riviera Diesel model years. Type a year to jump, e.g. "2015 Accord".
Same year, other powertrains: 1984 Buick Riviera (16 MPG)
Frequently asked questions
What is the gas mileage of the 1984 Buick Riviera Diesel?
Up to 21 MPG combined (18 city / 26 highway).
What fuel does the 1984 Buick Riviera Diesel use?
Diesel.
What is the fuel average in km/L for the 1984 Buick Riviera Diesel?
The 1984 Buick Riviera 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 Buick Riviera 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.