1984 Buick Riviera Specs, MPG & Trims
EPA fuel-economy data and specifications for the 1984 Buick Riviera (15–21 MPG combined) across 9 listed configurations.
Overview
- Body class
- Compact Cars, Midsize Cars
- Transmissions
- Automatic 4-spd
- Engine
- 6-cyl, 3.8 L; 6-cyl, 4.1 L; 8-cyl, 5.0 L; 8-cyl, 5.7 L
- Fuel type
- Regular Gasoline, Diesel
- Combined MPG
- 15–21 MPG
- Annual fuel cost
- $4,200–$4,550
- 5-year fuel cost
- −$10,750 to −$9,000 more than average
- Configurations
- 9
MPG & fuel economy
City, highway and combined values below are EPA estimates. Where a powertrain has several configurations, the table shows the lowest–highest reported value. Electric configurations use MPGe.
| Powertrain | City | Highway | Combined | Annual fuel cost | CO2 |
|---|---|---|---|---|---|
| 8-cyl 5.7 L · Diesel | 18 | 26 | 21 | $4,550 | — |
| 6-cyl 3.8 L · Regular Gasoline | 13 | 20 | 15 | $4,450 | — |
| 6-cyl 4.1 L · Regular Gasoline | 13 | 19–20 | 15 | $4,450 | — |
| 8-cyl 5.0 L · Regular Gasoline | 14 | 20 | 16 | $4,200 | — |
Configurations & engine comparison
Each row is one configuration/engine combination reported by the EPA for this model year. Missing EPA values are shown as —.
| Configuration / engine | Drive | Transmission | Cyl. | Displ. (L) | Fuel type | City | Hwy | Comb. | Annual cost | 5-YR COST | FE | GHG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Riviera | — | Automatic 4-spd | 6 | 3.8 | Regular Gasoline | 13 | 20 | 15 | $4,450 | −$10,250 | — | — |
| Riviera | — | Automatic 4-spd | 6 | 4.1 | Regular Gasoline | 13 | 20 | 15 | $4,450 | −$10,250 | — | — |
| Riviera | — | Automatic 4-spd | 8 | 5.0 | Regular Gasoline | 14 | 20 | 16 | $4,200 | −$9,000 | — | — |
| Riviera | — | Automatic 4-spd | 8 | 5.7 | Diesel | 18 | 26 | 21 | $4,550 | −$10,750 | — | — |
| Riviera | — | Automatic 4-spd | 6 | 4.1 | Regular Gasoline | 13 | 19 | 15 | $4,450 | −$10,250 | — | — |
| Riviera Convertible | — | Automatic 4-spd | 6 | 3.8 | Regular Gasoline | 13 | 20 | 15 | $4,450 | −$10,250 | — | — |
| Riviera Convertible | — | Automatic 4-spd | 6 | 4.1 | Regular Gasoline | 13 | 20 | 15 | $4,450 | −$10,250 | — | — |
| Riviera Convertible | — | Automatic 4-spd | 8 | 5.0 | Regular Gasoline | 14 | 20 | 16 | $4,200 | −$9,000 | — | — |
| Riviera Convertible | — | Automatic 4-spd | 6 | 4.1 | Regular Gasoline | 13 | 19 | 15 | $4,450 | −$10,250 | — | — |
Frequently asked questions
What is the combined MPG of the 1984 Buick Riviera?
According to EPA data, the 1984 Buick Riviera is rated at 15–21 MPG combined for its conventional-fuel configurations.
How many cylinders does the 1984 Buick Riviera have?
The EPA data lists 6 and 8 cylinders across its configurations.
What fuel type does the 1984 Buick Riviera use?
It is offered with Regular Gasoline and Diesel.
What is the annual fuel cost of the 1984 Buick Riviera?
The EPA estimates annual fuel costs ranging from $4,200 to $4,550.
How much will the 1984 Buick Riviera cost in fuel over 5 years?
According to EPA estimates, the 1984 Buick Riviera 5-year fuel-cost difference is −$10,750 to −$9,000 relative to the average new vehicle (negative values mean the vehicle costs more than average).