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1984 Buick Riviera
Buick Riviera — the model line, not this exact trim. Photo: Jukka Peura from Pori, Suomi,cropped and altered by uploader Mr.choppers · CC BY 2.0 · Wikimedia Commons

1984 Buick Riviera

Buick · 5.0 L 8-cyl

See it on fueleconomy.gov
Model year1984
Combined MPG16
City MPG14
Highway MPG20
Annual fuel cost$4,200

Against the 730 buick cars

Combined MPG 16 MPGbest 31 · avg 21
Annual fuel cost $4,200best $2,150 · avg $3,318

Bars are scaled to the best in the list; the mark shows the list average. Lower is better for fuel cost; higher is better for the rest. All figures are the EPA's.

Summary

1984 Buick Riviera by Buick. The figures below are from US EPA fueleconomy.gov, with the page each one came from.

Details

Model year
1984fueleconomy.gov · 3 Oct 2026

Efficiency

Combined MPG
16fueleconomy.gov · 3 Oct 2026
City MPG
14fueleconomy.gov · 3 Oct 2026
Highway MPG
20fueleconomy.gov · 3 Oct 2026

Running cost

Annual fuel cost
$4,200fueleconomy.gov · 3 Oct 2026
CO₂ (tailpipe)
555.4 g/mifueleconomy.gov · 3 Oct 2026

Car

Body
Carfueleconomy.gov · 3 Oct 2026
EPA class
Midsize Carsfueleconomy.gov · 3 Oct 2026

Powertrain

Engine
5.0 L 8-cylfueleconomy.gov · 3 Oct 2026
Transmission
Automatic 4-spdfueleconomy.gov · 3 Oct 2026
Fuel
Gasolinefueleconomy.gov · 3 Oct 2026

More buick cars

See the list
2027 Buick Enclave AWD 2027 · All-Wheel Drive · 2.5 L 4-cyl turbo Combined MPG21Annual fuel cost$3,200 2027 Buick Enclave FWD 2027 · Front-Wheel Drive · 2.5 L 4-cyl turbo Combined MPG22Annual fuel cost$3,050 2026 Buick Enclave AWD 2026 · All-Wheel Drive · 2.5 L 4-cyl turbo Combined MPG21Annual fuel cost$3,200 2026 Buick Enclave FWD 2026 · Front-Wheel Drive · 2.5 L 4-cyl turbo Combined MPG22Annual fuel cost$3,050 2026 Buick Encore GX AWD 2026 · All-Wheel Drive · 1.3 L 3-cyl turbo Combined MPG27Annual fuel cost$2,500 2026 Buick Encore GX FWD 2026 · Front-Wheel Drive · 1.3 L 3-cyl turbo Combined MPG30Annual fuel cost$2,250

Listed on CarCody

Sources