2020 GMC Sierra 3500HD Double Cab MPG

MSRP $41,195 - $48,995

Ranked #8 in Pickup-truck

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2020 GMC Sierra 3500HD Double Cab City, Highway and Combined MPG and Fuel Range


The 2020 GMC Sierra 3500HD Double Cab gets a 6.6-liter V-8 under the hood that makes 401 hp @ 5200 rpm and 464 lbs.-ft. @ 4000 rpm of torque. This engine is quite fuel-efficient and helps the car deliver a mileage of 15 mpg in the city and 22 mpg on the highway. The combined efficiency of the engine comes out to be 18 mpg as rated by the EPA.

2020 GMC Sierra 3500HD Double Cab MPG and Range

Trim NameMPG CityMPG HighwayMPG CombinedFuel Tank Capacity
4dr Double Cab LB (6.6L 8cyl 6A)15 mpg22 mpg18 mpg36 gal.
4dr Double Cab LB DRW (6.6L 8cyl 6A)15 mpg22 mpg18 mpg36 gal.
4dr Double Cab LB 4WD (6.6L 8cyl 6A)15 mpg22 mpg18 mpg36 gal.
SLE 4dr Double Cab LB (6.6L 8cyl 6A)15 mpg22 mpg18 mpg36 gal.
4dr Double Cab LB 4WD DRW (6.6L 8cyl 6A)15 mpg22 mpg18 mpg36 gal.
SLE 4dr Double Cab LB DRW (6.6L 8cyl 6A)15 mpg22 mpg18 mpg36 gal.
SLE 4dr Double Cab LB 4WD (6.6L 8cyl 6A)15 mpg22 mpg18 mpg36 gal.
SLE 4dr Double Cab LB 4WD DRW (6.6L 8cyl 6A)15 mpg22 mpg18 mpg36 gal.
When it comes to the fuel economy, the 2020 GMC Sierra 3500HD Double Cab is the least efficient of the lot. The car offers 15 mpg in the city, 22 mpg on the highway and combined efficiency of 18 mpg. All other rivals offer almost similar mpg figures but the 2020 GMC Sierra 3500HD Double Cab still goes down with its poorest mileage.

Its low MPG figures also hinder the overall travel range on a full tank which comes out to be - miles. One of the most efficient car amongst the competition is the 2020 Chevrolet Silverado 3500HD Double Cab with a mileage of 17 in the city and 23 on the highway. It has a total travel range of - miles on a full tank.

2020 GMC Sierra 3500HD Double Cab vs. Competitor's MPG and Range

Car NameMPG CityMPG HighwayMPG CombinedFuel Tank Capacity
2020 GMC Sierra 3500HD Double Cab15 mpg22 mpg18 mpg36 gal.
2020 Ford F-350 SuperDuty SuperCab-20 mpg-34 gal.
2020 Chevrolet Silverado 3500HD Double Cab17 mpg23 mpg19 mpg36 gal.

2018 GMC Sierra 3500HD Double Cab MPG and Range

Trim NameMPG HighwayFuel Tank Capacity
4dr Double Cab LB DRW (6.0L 8cyl 6A)47 mpg18.5 gal.
4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A)27 mpg18.5 gal.
4dr Double Cab 4WD LB (6.0L 8cyl 6A)26 mpg18.5 gal.
SLE 4dr Double Cab LB DRW (6.0L 8cyl 6A)26 mpg36 gal.
SLE 4dr Double Cab LB (6.0L 8cyl 6A)27 mpg36 gal.
SLE 4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A)26 mpg18.5 gal.
SLE 4dr Double Cab 4WD LB (6.0L 8cyl 6A)27 mpg36 gal.
SLT 4dr Double Cab LB DRW (6.0L 8cyl 6A)27 mpg36 gal.
SLT 4dr Double Cab LB (6.0L 8cyl 6A)27 mpg18.5 gal.
SLT 4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A)26 mpg18.5 gal.
SLT 4dr Double Cab 4WD LB (6.0L 8cyl 6A)25 mpg18.5 gal.
4dr Double Cab LB (6.0L 8cyl 6A)-18.5 gal.

2018 GMC Sierra 3500HD Double Cab vs. Competitor's MPG and Range

Car NameMPG CityMPG HighwayMPG CombinedFuel Tank Capacity
2018 Chevrolet Silverado 3500HD Crew Cab12 mpg17 mpg15 mpg36 gal.
2018 Chevrolet Silverado 3500HD Regular Cab12 mpg17 mpg15 mpg36 gal.
2018 RAM 2500 Crew Cab14 - 32 mpg--31 - 32 gal.
2018 Chevrolet Silverado 3500HD Double Cab12 mpg17 mpg15 mpg36 gal.
2018 GMC Sierra 3500HD Double Cab-25 - 47 mpg-18.5 - 36 gal.

2017 GMC Sierra 3500HD Double Cab MPG and Range

Trim NameMPG CityFuel Tank CapacityRange in Miles
4dr Double Cab 4WD LB (6.0L 8cyl 6A)32 mpg36 gal.-
4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A)23 mpg36 gal.425.5/0 mi.
4dr Double Cab LB (6.0L 8cyl 6A)30 mpg36 gal.-
4dr Double Cab LB DRW (6.0L 8cyl 6A)32 mpg36 gal.-
SLE 4dr Double Cab 4WD LB (6.0L 8cyl 6A)17 mpg36 gal.314.5/0 mi.
SLE 4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A)22 mpg36 gal.407/0 mi.
SLE 4dr Double Cab LB (6.0L 8cyl 6A)18 mpg36 gal.333/0 mi.
SLE 4dr Double Cab LB DRW (6.0L 8cyl 6A)25 mpg36 gal.462.5/0 mi.
SLT 4dr Double Cab 4WD LB (6.0L 8cyl 6A)30 mpg36 gal.-
SLT 4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A)25 mpg36 gal.462.5/0 mi.
SLT 4dr Double Cab LB (6.0L 8cyl 6A)30 mpg36 gal.-
SLT 4dr Double Cab LB DRW (6.0L 8cyl 6A)23 mpg36 gal.425.5/0 mi.

2017 GMC Sierra 3500HD Double Cab vs. Competitor's MPG and Range

Car NameMPG CityFuel Tank CapacityRange in Miles
2017 Chevrolet Silverado 3500HD Double Cab11 - 25 mpg36 gal.203.5/0 mi.
2017 GMC Sierra 3500HD Double Cab17 - 32 mpg36 gal.314.5/0 - 462.5/0 mi.
2017 Chevrolet Silverado 3500HD Crew Cab14 - 17 mpg36 gal.-
2017 Chevrolet Silverado 3500HD16 - 29 mpg36 gal.296/0 - 536.5/0 mi.
2017 RAM 2500 Crew Cab16 - 17 mpg31 - 32 gal.296/0 - 314.5/0 mi.

2016 GMC Sierra 3500HD Double Cab MPG and Range

Trim NameFuel Tank Capacity
SLT 4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A)36 gal.
SLT 4dr Double Cab 4WD LB (6.0L 8cyl 6A)36 gal.
SLT 4dr Double Cab LB DRW (6.0L 8cyl 6A)36 gal.
SLT 4dr Double Cab LB (6.0L 8cyl 6A)36 gal.
SLE 4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A)36 gal.
SLE 4dr Double Cab 4WD LB (6.0L 8cyl 6A)36 gal.
SLE 4dr Double Cab LB DRW (6.0L 8cyl 6A)36 gal.
SLE 4dr Double Cab LB (6.0L 8cyl 6A)36 gal.
4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A)36 gal.
4dr Double Cab 4WD LB (6.0L 8cyl 6A)36 gal.
4dr Double Cab LB DRW (6.0L 8cyl 6A)36 gal.
4dr Double Cab LB (6.0L 8cyl 6A)36 gal.

2016 GMC Sierra 3500HD Double Cab vs. Competitor's MPG and Range

Car NameFuel Tank Capacity
2016 GMC Sierra 3500HD Double Cab36 gal.

2015 GMC Sierra 3500HD Double Cab MPG and Range

Trim NameFuel Tank Capacity
SLT 4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A)36 gal.
SLT 4dr Double Cab 4WD LB (6.0L 8cyl 6A)36 gal.
SLT 4dr Double Cab LB DRW (6.0L 8cyl 6A)36 gal.
SLT 4dr Double Cab LB (6.0L 8cyl 6A)36 gal.
SLE 4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A)36 gal.
SLE 4dr Double Cab 4WD LB (6.0L 8cyl 6A)36 gal.
SLE 4dr Double Cab LB DRW (6.0L 8cyl 6A)36 gal.
SLE 4dr Double Cab LB (6.0L 8cyl 6A)36 gal.
4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A)36 gal.
4dr Double Cab 4WD LB (6.0L 8cyl 6A)36 gal.
4dr Double Cab LB DRW (6.0L 8cyl 6A)36 gal.
4dr Double Cab LB (6.0L 8cyl 6A)36 gal.

2015 GMC Sierra 3500HD Double Cab vs. Competitor's MPG and Range

Car NameFuel Tank Capacity
2015 GMC Sierra 3500HD Double Cab36 gal.

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