I can tell you from many years of experience, this is partially incorrect. 2-4% may be accurate at slow speeds, but friction is a multiplier and it will have a larger effect the faster you travel.
Also, I missed that OP is in Norther Michigan- another factor at play is snow and ice. I can tell...
Thanks for sharing. After owning a few Teslas, and having 86k miles on my 2022 Model 3, I have a few questions… first I’ll tell you where my head is and hopefully you respond.
20% loss a big jump, but 100% likely to be because EPA rating is at 60mph and I didn’t see the largest variable in EV...