1989 GMC R1500 Suburban MPG
Based on data from 2 vehicles, 16 fuel-ups and 4,811 miles of driving, the 1989 GMC R1500 Suburban gets a combined Avg MPG of 10.66 with a 0.66 MPG margin of error.
Below you can see a distribution of the fuel-ups with 2 outliers (11.11%) removed.
Following shows the average MPG of each of the 2 vehicles in the system.
My R1500 Suburban
1989 GMC R1500 Suburban 5.7L V8 GAS Automatic 4 Speed
Added Aug 2018 • 19 Fuel-ups
Property of shunt468
11.3 Avg MPG
1989 GMC R1500 Suburban 5.7L V8 GAS Automatic 3 Speed Sport Utility
Added Feb 2017 • 6 Fuel-ups
Property of ILikeBigTrucks
34.7 Avg MPG