Buick Riviera MPG and Fuel Economy
Buick have been manufacturing models of Riviera for 15 years, with the latest vehicle in 1999 having a combined MPG of 19.
The estimated fuel cost for the 1999 Buick Riviera is $3,900 per year.
Government regulators have estimated that value based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.
💵 Compared to an average vehicle over 5 years, you will spend $8,000 more on fuel driving a 1999 Buick Riviera.
🛢 The Buick Riviera will consume roughly 16 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.
💨 For every mile driven, the Buick Riviera will emit -1 grams of CO2, which is about -15,000 grams of CO2 per year.
🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 1 tree would be needed to offset emissions from the Buick Riviera.
The table below is a complete list of the 15 Buick Riviera fuel efficiency specifications we have data for.
Click any vehicle link to see a more detailed breakdown of the car, miles per gallon, emissions, and more.
| Vehicle | Combined MPG | Fuel Cost |
|---|---|---|
| 1999 Buick Riviera | 19 | $3,900 |
| 1998 Buick Riviera | 19 | $3,300 |
| 1997 Buick Riviera | 20 | $3,150 |
| 1996 Buick Riviera | 21 | $3,000 |
| 1995 Buick Riviera | 20 | $3,150 |
| 1993 Buick Riviera | 20 | $3,150 |
| 1992 Buick Riviera | 19 | $3,300 |
| 1991 Buick Riviera | 19 | $3,300 |
| 1990 Buick Riviera | 19 | $3,300 |
| 1989 Buick Riviera | 20 | $3,150 |
| 1988 Buick Riviera | 20 | $3,150 |
| 1987 Buick Riviera | 19 | $3,300 |
| 1986 Buick Riviera | 20 | $3,150 |
| 1985 Buick Riviera | 17 | $3,700 |
| 1984 Buick Riviera | 15 | $4,150 |
Link To or Reference This Page
If you use this page in your research, please reference MPG Buddy as the source.
<a href="https://mpgbuddy.com/cars/buick/riviera">Buick Riviera MPG and Fuel Economy</a>
"Buick Riviera MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/buick/riviera.
"Buick Riviera MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/buick/riviera. Accessed January 3, 2026.
Buick Riviera MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/buick/riviera.