I just did the exact same thing. On my 2021 MYLR I replaced the OEM Continentals with Extreme Contact DWS06+ 3 days ago. I will keep you posted on my wh/mile change. I had 21K miles on the OEM tires and the wh/mi over this period was 270, exactly like yours. So far I have only about 30 miles on the DWS06+ and am at 280 wh/mi.
What were your OEM tire depth measurements when you had them replaced (eg. 4/32)? Did you process the warranty measurement and replacement at Discount Tire?
They were all 4/32. I called Continental and explained that they seemed awfully worn for only 20k. They explained there is *no* mileage warranty for oem tires but they agreed it was excessive and would consider offering a discount on new tires. They told me where to go based on my zip code. The shop did all the measurements and contacted continental , who then agreed to 50% off a new set of 4 of any tire they make. I chose the EC DWS06+
So after about 650 miles now I am at 295 wh/mi on the DWS06+ whereas my average over 21k miles on the OEM Continentals was 270 wh/mi. So definitely appears to be more rolling resistance with the new tires. But it is also colder now, so that may be a factor.
OE tires aren't necessarily made to the same spec as the aftermarket tires.
The other factor with Teslas is not just the torque but the fact that when you get a brand new Tesla, you have all this power and you want to play - it’s fun taking off when the light turns green and feeling that EV power propel you straight to 60 mph. The problem is that also wears the tires really fast. After you’ve had the car for a while you tend to moderate your driving style. The end result is the OEM tires wear out much more quickly.
Temps and driving conditions can make a big difference in efficiency with EVs so you need to be very careful in your comparisons. I put the most weight on the lifetime efficiency of my car right around the time I took delivery. That means I’ve gone through a complete cycle of seasons with cold and snow, heat & A/C and the ‘golden’ times in between where efficiency is at its peak.
Makes sense to me. I don't see how one could reduce rolling resistance without also reducing traction. I mean, traction is resistance - though resistance to slipping, not rolling. Maybe it's a dynamic friction vs static friction balance? In any event, I'm not surprised these DWS06+ have more rolling resistance, as they seem to really "stick" to the road when driving and feel more confident than the OEM Conti's did to me. I'll take that kind of resistance. Hoping they resist in snow a bit too.
Ditto for the Pilot Sport AS4.Makes sense to me. I don't see how one could reduce rolling resistance without also reducing traction. I mean, traction is resistance - though resistance to slipping, not rolling. Maybe it's a dynamic friction vs static friction balance? In any event, I'm not surprised these DWS06+ have more rolling resistance, as they seem to really "stick" to the road when driving and feel more confident than the OEM Conti's did to me. I'll take that kind of resistance. Hoping they resist in snow a bit too.
