11-30-2024, 05:25 PM | #1 |
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i5 M60 consumption in low temperatures?
Hi,
I have been testing i5 m60 in good weather conditions. I know the figures and they are between 20-23kWh/100km - 21” wheels, maxed out spec. Now I was looking for test on YouTube and found two range tests on cars with same wheels, both in sweden, both in temps around -2, both 120km/h. What wonders me, in one test guy reached almost 30kWh/100, while another 23.9. That’s a big difference. Why can be so? here the result is 23.9 here the result is 29 Could be the reason some SW-Update? Or some battery differences? Month of production? Thanks! |
11-30-2024, 05:53 PM | #2 |
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In the second video he has two runs - one gets 29 and the other time he gets 22.3 - so to me this means it’s differences in terrain, specific conditions (how wet the road is, is there more wind etc.). Also the second video is using AC set at 22C vs 20C in the fist video. First one is at night, the second is in the day - who knows if one had more climbing/hills than the other? Etc,etc.
To me this is the perfect example of why a car’s range or efficiency is not a static number but varies hugely with driving conditions. |
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SkykingUSA4734.50 |
11-30-2024, 05:58 PM | #3 | |
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But what is kind of average for winter for 120km/h? If 30 is deviation can we say 24 is common number?obviously on flat road. I don’t think 22C vs 20C would make difference but wind and terrain yes Edit: the second run on second video was with speed 92km/h not 120. |
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SkykingUSA4734.50 |
11-30-2024, 06:08 PM | #4 | |
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EV’s have much more variability in efficiency as the power use is so much more efficient everything that impedes forward motion is magnified in effect. |
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11-30-2024, 06:16 PM | #5 |
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It also depends on outside temperature, pre-heating and road conditions.
Right now, where I'm living, in -25C, at city speeds, poor maintained snow roads (ie. i can't see pavement, even with winter tires, I'm sliding around on slick snow), I'm averaging 33 kwh/100km on my 20in winter tires. I typically have the cabin temperature set to auto at 20 degrees (so variable use of heated seats and heated steering wheel). I think surface traction makes a big difference as a lot of power is going towards flinging snow as opposed to putting power on the ground. |
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SkykingUSA4734.50 mariopl232.00 |
11-30-2024, 07:12 PM | #6 |
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Consumption is worse in the cold. I think it's partly from heating the cabin. Short trips are especially bad. You can see it consuming 3-5 kW just for keeping things running and warming the air inside when idle at a traffic light. Once it gets the inside to the target temperature it settles down to 2-ish kW at idle.
In the summer it idles at under 1 kW sometimes. It's 0°C here and I just drove a short distance to the car wash and managed a spectacular 44 kWh/100km. On the other hand, the other day on a longer trip I got 20.3 kWh/100km. Consumption is probably around 15% worse, generally, in the winter vs in the summer. I have 19" winter tires/wheels and 20" summer tires/wheels, if that info helps... |
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SkykingUSA4734.50 mariopl232.00 |
12-01-2024, 04:49 PM | #7 |
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It’s been in the 30’s and 40’s all month. It’s not even winter yet. I drive less than 100 miles a day, so it doesn’t matter. Last winter, I was telling myself that I should have got the Lucid Air. Now, I don’t care about range at all. My car has never gone below 30%
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12-01-2024, 06:23 PM | #8 | |
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