I replaced my worn out stock tires 2 months ago and after 200 miles I still have a 20% hit. I used to charge full up to 210 (75-80mph) around 3.3kwh now I'm around 175. I can't figure out why except it likes bald tires. I replaced it with factory spec since it's a lease and I turn it in next month. Oh well, the seats are horrible had the driver side replaced once now it makes all kinds of noises again, next month it's a model 3 for $10K more.At 83k, it was finally time to ditch the OEM tires. Getting that many miles out of original tires is proof I drive quite gently (most of the time, anyway)
Yesterday I bought a set of Bridgestone Turanza QuietTracks.
And quiet they are, but I sure seem to have taken a heckuva efficiency hit. My lifetime dashboard efficiency average is 4.81 mi / kWh since most of my driving is in warm flat Florida at around-town speeds - more evidence of my conservative driving style.
Yesterday's driving characteristics (even less freeway than usual) should have resulted in a daily calculated efficiency in the 5.0 - 5.25 range, but all I got was 4.21.
Midday, I aired them up to sidewall max (50 psig) - that seemed to help, but not much
Yikes - I sure hope these tires get better with age!