1990 GMC C1500 MPG

Based on data from 5 vehicles, 89 fuel-ups and 20,017 miles of driving, the 1990 GMC C1500 gets a combined Avg MPG of 11.94 with a 0.23 MPG margin of error.

Below you can see a distribution of the fuel-ups with 13 outliers (12.75%) removed.

Following shows the average MPG of each of the 5 vehicles in the system.

• My C1500

  1990 GMC C1500 Sierra SLE 5.7L V8 GAS Automatic 3 Speed
  Added Mar 2022 • 16 Fuel-ups

  Property of CrazyCarl04

• 14.8 Avg MPG

• JFEZZ Truck

  1990 GMC C1500 Sierra SLX 5.7L V8 GAS Automatic 4 Speed
  Added Sep 2016 • 99 Fuel-ups

  Property of JFezz

• 14.8 Avg MPG

• '90 GMC

  1990 GMC C1500 Sierra 4.3L V6 GAS Standard 5 Speed
  Added May 2013 • 5 Fuel-ups

  Property of bruised

• 10.6 Avg MPG

• My C1500

  1990 GMC C1500 Sierra SLE 5.7L V8 GAS Automatic 4 Speed
  Added Jul 2017 • 3 Fuel-ups

  Property of thatslammed90GMC

• 28.1 Avg MPG

• truck

  1990 GMC C1500 Sierra
  Added Jul 2012 • 8 Fuel-ups

  Property of chromerush

• 12.8 Avg MPG