Buick Riviera MPG by year — every rating on record

The Buick Riviera has a combined EPA fuel economy rating for 15 model years, from 1984 to 1999. Across those years its best rated version returned 21 mpg (1984) and its thirstiest returned 15 mpg (1984). The EPA record holds 25 configurations for this nameplate, most recently a Midsize Cars.

Year-by-year EPA ratings

Where it has stood in its class

Ranked against every other nameplate the EPA filed under the same class that year. The Buick Riviera placed highest in 1996 at #10 of 36, and lowest in 1999 at #32 of 56. It spent 11 of its 15 ranked years in the top half of its class.

Every configuration on record

All 25 configurations EPA lists for this nameplate, newest first.

How the rating has moved between model years

Comparing the best-rated configuration of each year. 3 of 8 year-over-year steps improved the top rating.

What Riviera fuel costs over a year

At the EPA's 11,500 miles a year, the 1999 Buick Riviera burns 605 to 605 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.

EPA’s own estimate for the 1999 model year is $4,100 to $4,100 a year in fuel, or $9,250 more than the average new vehicle over five years.

How it compares with other Midsize Cars

Across the 483 nameplates EPA classifies as Midsize Cars, the median best combined rating is 25 mpg. At 19 mpg the Buick Riviera is 6 mpg below the median, which is worth about $508 a year at $3.50 a gallon.

• All Midsize Cars rankings — every nameplate in the class, best to worst.

Other Buick nameplates

Every Buick model compared → — all nameplates ranked by best combined rating, with what each one costs a year.