How many miles per gallon does a 2019 Chevy 3500 diesel get?
In general, the 2019 Silverado 3500HD with the Duramax diesel yields about 18 miles per gallon combined in typical two-wheel-drive configurations, with city around 15 mpg and highway around 22–23 mpg. Exact figures depend on your cab/bed setup, axle ratio, and whether the truck is rear- or four-wheel drive.
Typical fuel economy by drivetrain
The following figures reflect EPA estimates for common configurations of the 2019 Silverado 3500HD Duramax. Real-world results vary with cab/bed choice, payload, towing, and driving conditions.
Two-wheel drive (2WD)
- City: 15 mpg
- Highway: 22–23 mpg
- Combined: about 18 mpg
Notes: In 2WD form, highway efficiency tends to be higher, while city driving and payload can pull the average down. Exact numbers depend on the axle ratio and body configuration.
Four-wheel drive (4WD)
- City: 14–15 mpg
- Highway: 20–21 mpg
- Combined: about 17–18 mpg
Notes: Engaging 4WD typically reduces overall efficiency by a mpg or two, with payload and towing also affecting the numbers. Configurations and gear ratios matter.
What affects mpg on the 2019 Silverado 3500HD
Fuel economy on a heavy-duty diesel pickup like the Silverado 3500HD is sensitive to payload, towing loads, tire size and pressure, aerodynamics, and driving habits. Heavier payloads and frequent towing of heavy trailers will lower mpg, while highway cruising with light loads can boost it. For the most precise figure, consult the EPA rating for your exact build or check the window sticker from the dealership.
How to verify the exact mpg for your build
To obtain the precise miles-per-gallon figures for your specific truck, use the EPA’s Fuel Economy website and enter your exact configuration (cab style, bed length, axle ratio, drivetrain). The Monroney label on new vehicles also lists the official city/highway/combined ratings for your exact setup. Dealer estimates and on-board trip computers can provide real-world data, but EPA ratings remain the standard reference.
Tips to maximize fuel economy
Maximizing mpg on a Silverado 3500HD Duramax involves maintaining proper tire pressure, reducing unnecessary weight, selecting appropriate gear ratios, and adopting smooth driving habits. Towing and payload will inherently reduce fuel efficiency, so plan loads strategically and use engine braking and efficient speeds to mitigate consumption.
Summary: For the 2019 Silverado 3500HD Duramax diesel, expect roughly 18 mpg combined in typical 2WD configurations and about 17–18 mpg in 4WD configurations, with city and highway numbers around 15 mpg and 20–23 mpg respectively. Exact values depend on cab/bed, axle ratio, and payload; always check the EPA rating for your specific build.
How many miles per gallon does a 2019 Silverado 3500 diesel get?
It got 12-15 mpg. There was absolutely no trailer sway, even without an anti-sway hitch. When not towing, the truck averages 23 mpg at 75 mph, with a range of about 600 miles/tankful. You can hear the diesel engine around town but not on the highway.
How do you get 30 MPG on a Duramax?
General Tips for Better MPG
- Don't let your truck idle for long periods of time if you can help it. Idling burns a lot of fuel and your gas mileage will take a hit.
- Don't be heavy on the gas.
- Watch your tire pressure.
- Service and maintain your Duramax truck regularly.
How many miles per gallon does a 3500 diesel get?
Efficiency leaders: Chevrolet/GMC 2500/3500 Duramax 6.6L, Ford F-250/F-350 6.7L, Ram 2500/3500 6.7L. Unloaded highway runs often deliver 17–20 mpg when geared sensibly.
What fuel mileage does a 6.6 l Duramax diesel get?
The 6.6L Duramax engine's MPG varies, but typically ranges from 15-18 MPG for mixed driving and 17-20 MPG for unloaded highway driving. Actual mileage depends heavily on factors like driving conditions, towing, and the specific model year. Some newer models achieve higher efficiency, with a 2025 Silverado HD hitting 20.4 MPG on a controlled highway loop.
This video shows a fuel economy test of a 2021 Chevy Silverado HD with the 6.6L Duramax engine towing a trailer: 48struckguyjoeYouTube · Jan 15, 2021
Mileage breakdown by driving type:
This video demonstrates a fuel economy test of a 2024 Chevy Silverado HD Duramax: 57sDaily MotorYouTube · Jun 27, 2023
- Mixed/City: Around 15 MPG or lower, especially with stop-and-go traffic.
- Highway (unloaded): Typically 17-20 MPG, but can vary with speed.
- Towing: Expect significantly lower mileage, often in the 10-14 MPG range depending on the load and terrain.
Factors that influence MPG:
- Towing and load: Hauling heavy loads reduces fuel efficiency.
- Driving conditions: Hilly terrain or stop-and-go city traffic lowers MPG.
- Vehicle age and break-in: Newer trucks may improve after an initial break-in period, with some owners reporting increased mileage after a few thousand miles.
- Other factors: Speed, road conditions, and factors like the truck's emissions system (e.g., temporary DPF regen cycles) can also have an effect.
You can watch this video to see real-world mileage results for a 2022 GMC Sierra 2500 Duramax: 1mDaily MotorYouTube · Mar 26, 2022
