Recently took my Hummer EV on a roadtrip mixing highway, freeway and surface streets and averaged 1.9 mi/kWh for 412 total miles. The most efficient speed was 55 mph which averaged 2.2 mi/kWh over the 23.6 miles at that speed. See screenshot.
![Sky Cloud Vehicle Automotive mirror Motor vehicle]()
![Gadget Audio equipment Automotive mirror Display device Personal luxury car]()
412 Miles on single charge @ 1.9 mi/kWh
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That is great range
2019 Chevy Volt, Voltech with 7.2 kW optional Charger
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Nice! Great to see that!
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I think the silverado/ sierra WT models with skinny tires and big pack might hit 500 in perfect conditions on the freeway
Yes, stock ED1 tires. Btw, I now believe it’s possible to exceed the 500 mile range mark in the Hummer EV at max 45-55 miles per hour with consistent use of regenerative braking on optimal road surface in low wind and average temperature. Going to try that soon and will report back.
Does anyone know if there any tires that would extend the range that would also decrease 0-60 time? (By how much?) I’ve been thinking about buying one of these floor jacks and keeping two or three sets of balanced wheels/tires in my garage for different use cases.
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2019 Chevy Volt, Voltech with 7.2 kW optional Charger
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Interesting, also that link is broken.
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I haven't looked into tires for the Hummer but your choices are probably pretty limited because of how heavy it is. Road tires in that load class are going to be more about rolling resistance than grip.
Once the 3X trucks come out with the 22" All Terrain tires, maybe GM will spec the range for those, so we can see the difference. There are many factors that affect the range, wheel weight, tire weight and rolling resistance. The Mud Terrains on the ED1 are marked as EV range tuned, meaning they are trying to reduce rolling resistance. My expectation would be that the All Terrains would be slightly better, but the larger wheel diameter could potentially have an adverse affect.
Cooper Discoverer AT3 XLT looks promising. They have a skinnier 35” tire (285/75R18) Load Range E (like the stock tires).
2019 Chevy Volt, Voltech with 7.2 kW optional Charger
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How long have you had the truck and what's the miles on it? All current OTAs installed?
I never saw mine adjust either but it's possible GM doesn't let it go lower than 329. That's the approach Rivian is taking and it's pretty frustrating because it's not accurate.
1.4 mi/kWh calculates out to about 300 miles of range in the Hummer. We were usually getting ~1.2-1.4 on the freeway in the winter time here.
Based on the photos above, 58% with 254 miles estimated range should mean the truck displays somewhere around 450 miles when full.
I’ve had it 8 months and it has 4600 miles. All OTAs are current
Does max load 4,080 pounds mean per tire?
When I fully charge it shows even higher range now (442 miles) than before presumably due to more efficient driving and higher mi/kWh.
Do you always use regenerative braking on the steering wheel around town and on highway rather than brake and do you stay under 60 miles per hour? Try both and reset trip meter and see if you can get up to 2.1 mi/kWh. It takes 15 miles to calculate the average from 1.5 default.
Yes, see mine at 100%.
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