2004 Buick Park Avenue

Full-Size Sedan Regular
Buick Park Avenue 2004
21MPG Combined
2 Trims
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Updated February 27, 2026

The 2004 Buick Park Avenue Full-Size Sedan provides 20–21 combined MPG depending on trim. We’ve compiled EPA fuel economy data, NHTSA safety ratings, and recall history so you can make an informed decision.

2004 Buick Park Avenue Specifications

SpecValue
Combined MPG20–21 combined MPG depending on trim
City MPG18
Highway MPG27
Body StyleFull-Size Sedan
Fuel TypeRegular
DriveFWD
Available Trims2

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
Auto18/27/213.8L 6cylAutomatic 4-spd
Auto16/26/203.8L 6cylAutomatic 4-spd

Annual Fuel Cost

Based on EPA estimates, the 2004 Buick Park Avenue costs approximately $2,500 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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