2015 GMC Sierra 3500 HD MPG

Based on data from 46 vehicles, 3,946 fuel-ups and 1,428,110 miles of driving, the 2015 GMC Sierra 3500 HD gets a combined Avg MPG of 13.57 with a 0.13 MPG margin of error.

Below you can see a distribution of the fuel-ups with 64 outliers (1.60%) removed.

Following shows the average MPG of each of the 46 vehicles in the system.

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• My Sierra 3500 HD

  2015 GMC Sierra 3500 HD SLT 6.0L V8 FLEX Automatic 6 Speed
  Added Dec 2016 • 16 Fuel-ups

  Property of tobedestyn

• 9.8 Avg MPG

• GMC Sierra 3500 Denali

  2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Oct 2016 • 29 Fuel-ups

  Property of rkt4796606

• 11.3 Avg MPG

• My Sierra 3500 HD

  2015 GMC Sierra 3500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
  Added Dec 2015 • 5 Fuel-ups

  Property of 750hpDenali

• 12.5 Avg MPG

• Blue Dually

  2015 GMC Sierra 3500 HD Denali 6.6L DIESEL V8 Automatic 6 Crew Cab Pickup (4 Door)
  Added Apr 2015 • 58 Fuel-ups

  Property of BigJon

• 12.5 Avg MPG

• Denali HD

  2015 GMC Sierra 3500 HD Denali 6.6L DIESEL V8 Automatic 6
  Added Jun 2014 • 12 Fuel-ups

  Property of fury

• 13.5 Avg MPG

• whitey

  2015 GMC Sierra 3500 HD DIESEL
  Added Apr 2014 • 3 Fuel-ups

  Property of jbuff

• 14.6 Avg MPG

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