Click here to see important news regarding the aCar App

Units:
Information Use Fuelly

Buick GS 400 MPG

1 Buick GS 400s have provided 8 thousand miles of real world fuel economy & MPG data.
Click here to view all the Buick GS 400s currently participating in our fuel tracking program.

Buick GS 400s For Sale Nearby

Tips

Avoid short trips

Trips that dont get your vehicle up to proper temperature ar... ...

by VaporRider

Read more tips

Research
Community
Social
Support
Legal
Account

© 2025 Fuelly.com - All Rights Reserved. Mar 27, 2025 1:44 AM CDT

Join Fuelly

close

A simple & effecive way to track fuel consumption
Easy to understand the real cost of your vehicle

Benefits
  • It's free of course!
  • Get an accurate view of your vehicles fuel economy
  • Compare your vehicle to others with the same vehicle