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Buick GS 400 MPG

1 Buick GS 400s have provided 7 thousand miles of real world fuel economy & MPG data.
Click here to view only the Buick GS 400s with MPG currently participating in our fuel tracking program.

Buick GS 400s For Sale Nearby

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Get a 50cc Scooter

They are fun and get 60 to 100+ mpg. I use mine way more tha... ...

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  • Compare your vehicle to others with the same vehicle