1988 GMC C1500 MPG

Based on data from 3 vehicles, 8 fuel-ups and 2,864 miles of driving, the 1988 GMC C1500 gets a combined Avg MPG of 15.13 with a 2.99 MPG margin of error.

Below you can see a distribution of the fuel-ups with 2 outliers (20.00%) removed.

Following shows the average MPG of each of the 3 vehicles in the system.

• My C1500

  1988 GMC C1500 Sierra 5.0L V8 GAS Automatic 3 Speed
  Added Nov 2017 • 6 Fuel-ups

  Property of JFNewsome

• 12.5 Avg MPG

• GMC Truck

  1988 GMC C1500 Sierra
  Added Jan 2025 • 14 Fuel-ups

  Property of Jericho941f

• 15.0 Avg MPG

• Jack

  1988 GMC C1500 GAS V6
  Added Feb 2010 • 4 Fuel-ups

  Property of flynnski

• 17.2 Avg MPG