2025 GMC Sierra 1500 MPG

Based on data from 2 vehicles, 7 fuel-ups and 2,506 miles of driving, the 2025 GMC Sierra 1500 gets a combined Avg MPG of 22.91 with a 4.14 MPG margin of error.

Below you can see a distribution of the fuel-ups with 0 outliers (0.00%) removed.

Following shows the average MPG of each of the 2 vehicles in the system.

• Gray Ghost

  2025 GMC Sierra 1500 Denali Ultimate L6 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Nov 2024 • 6 Fuel-ups

  Property of Neurobit

• 25.1 Avg MPG

• Kevin’s GMC

  2025 GMC Sierra 1500 SLT Automatic 10 Speed
  Added Dec 2024 • 3 Fuel-ups

  Property of kevinharper9

• 17.9 Avg MPG