1991 GMC C1500 MPG

Based on data from 8 vehicles, 192 fuel-ups and 52,139 miles of driving, the 1991 GMC C1500 gets a combined Avg MPG of 15.15 with a 0.43 MPG margin of error.

Below you can see a distribution of the fuel-ups with 13 outliers (6.34%) removed.

Following shows the average MPG of each of the 8 vehicles in the system.

• Theresa's truck

  1991 GMC C1500 Sierra 4.3L V6 GAS Automatic 4 Speed
  Added Sep 2016 • 111 Fuel-ups

  Property of slo-mo-shun

• 16.7 Avg MPG

• My C1500

  1991 GMC C1500 Sierra SLE 5.7L V8 GAS Automatic 4 Speed
  Added Apr 2023 • 11 Fuel-ups

  Property of Millwright98

• 9.9 Avg MPG

• 1badgmc

  1991 GMC C1500 Sierra SLE 5.7L V8 GAS Standard 5 Speed Standard Cab Pickup
  Added Jun 2018 • 3 Fuel-ups

  Property of 1badgmc

• 7.8 Avg MPG

• My C1500

  1991 GMC C1500 Sierra SLE 4.3L V6 GAS Automatic 4 Speed
  Added Feb 2017 • 82 Fuel-ups

  Property of Johnnypop

• 15.3 Avg MPG

• 1991 GMC T56

  1991 GMC C1500 Sierra 5.7L V8 GAS Manual 6 Speed Standard Cab Pickup
  Added Aug 2017 • 41 Fuel-ups

  Property of c12segy

• 16.9 Avg MPG

• My C1500

  1991 GMC C1500 Sierra SLE 4.3L V6 GAS Standard 5 Speed
  Added Nov 2017 • 9 Fuel-ups

  Property of tj060409

• 12.4 Avg MPG

• Pick Up Truck GMC 1991

  1991 GMC C1500 Sierra SLE 5.7L V8 GAS Automatic 4 Speed
  Added Apr 2017 • 13 Fuel-ups

  Property of Gabriel_E

• 11.3 Avg MPG

• My C1500

  1991 GMC C1500 Sierra 5.7L V8 GAS Automatic 4 Speed Standard Cab Pickup
  Added Feb 2017 • 38 Fuel-ups

  Property of macpro19

• 15.2 Avg MPG