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Dave L.

Winter Tires vs. All-Season/Summer Tires

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Used the app to drive from Halifax, Nova Scotia, Canada in the 2020 Hyundai Ioniq 38kW to Moncton, New Brunswick, Canada, total distance was just shy of 300km. 

The app worked well and I pre-planned with weather, road conditions, max speed (I drove slower too fyi), temperature and speed to plug in and charge up all factored in. The app was correct on frequency of stops and what locations to stop at but was off by about 8-10% on the expected SOC (even factoring in temps, max speed etc.). For example, my 1st stop the app estimated I should be at 43% but I was actually down to 35% (again I drove 10km less than I indicated on the app) and that charging to 56% should get me to my 2nd charge stop with 10% remaining. I charged to 69% instead, during that 1st stop and arrived at my 2nd stop with only 12% remaining; thank goodness I over-charged. Now, I had swapped out the low-resistance rims & all-season tires to winter tires and standard steel rims, which most drivers would do in winter, this is likely why I saw such a difference. 

So I believe a valuable option would be to include a drop down option for losses for winter tires & non-efficient rims (standard steel rims). Perhaps similar to the way the drop down for "rain/snow wet road" losses works. I think it'll really be useful for those of us in climates where we need winter tires. 

Thanks, love the app!

Edited by Dave L.
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The same for me.

I saw that in the feature thread this suggestion is aggreed by ABRP team.

it would be nice to use the label letter in use in Europe to classify rolling resistance of tyres (A through G).

 I read that between the best and the last in class there is an 8% difference.


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