1969 Buick GS 400 MPG

Based on data from 1 vehicles, 26 fuel-ups and 6,763 miles of driving, the 1969 Buick GS 400 gets a combined Avg MPG of 15.83 with a 2.86 MPG margin of error.

Below you can see a distribution of the fuel-ups with 1 outliers (3.70%) removed.

• Gs

  1969 Buick GS 400 6.6L V8 GAS
  Added Apr 2020 • 28 Fuel-ups

  Property of GS400

• 16.9 Avg MPG