Can a new gas-powered 2024 Chevy Silverado HD be competitive versus a diesel equivalent truck in efficiency and towing confidence? This is why we do real-world testing. This time it’s the new 6.6L gas V8 and 10-speed automatic combo under the hood of a new Silverado heavy-duty truck versus the Denver 100 mpg loop. I drive 111 miles in this nicely-equipped LTZ crew cab 4×4 unloaded and with a 10,600 lbs trailer. I want to see how this new powertrain compares against the previous gasser with a 6-speed automatic, and how it compares against the Duramax-powered trucks.
Thanks to our friends at Sinclair for making the Denver 100 mpg loop possible. Check out their DINOPAY app for fuel savings. This episode is also made possible by GenY Hitch and MrTruck.com.
Here is what we are comparing against.
2024 Chevy Silverado HD 2500: 6.6L Duramax turbo-diesel V8: 18.1 MPG (very Windy conditions).
2020 Chevy Silverado HD 2500: 6.6L Duramax turbo-diesel V8: 19.9 MPG (Road-trip).
2024 Chevy Silverado HD 3500 SRW: 6.6L Duramax turbo-diesel V8: towing 10,600 lbs: 11.5 MPG
2020 Chevy Silverado HD 2500: 6.6L “tiger-jet” gas V8: 16.3 MPG
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