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Sam's club tires. That's the culprit (at least one of them). Give us the the brand and the model name of the tire. My Goodyear assurance tires were great at low rolling resistance, but grippiness was lacking. I switched to Yokohama Ascends and my mileage dropped (i.m lucky to get 30 miles of EV range on a good day) but I also stopped driving like a grandpa and more like Jeff Gordon.The tires are the same rated size as per the door jam. They were purchased at Sams Club but they won't install tires in sizes that are not on the sticker.
As for revs per mile or weight, I did not compare at the time except for a visual inspection. However I'm checking the web sites right now:
Neither factory web site had full information but Tirerack does:
View attachment 134401
It seems that the Pirillis are 1 pound heavier and 2/10ths of an inch taller and a bit more contact patch. Close enough for my book, and I am satisfied with their handling and quietness.
As for dragging components, yes, that I one thing that I did check. While I had it on the lift at my regular dealership, I checked for a dragging caliper but couldn't feel anything. I haven't checked using an IR thermometer but honestly, I'm not expecting anything unusual.
Even the dealer when they changed the pads said that the hardware was fine, clean and working correctly. I specifically request the check as I suspected a dragging caliper, as well.
As for the parking brake, I have tested it but frankly, I don't like an electric "emergency" system.
But then again, I'm not suspecting brake drag, especially when my EV range is so good.
Thanks for your reply!
Secondly, I suspect you are driving the car like a jackrabbit, probably at or above the speed limit. That kills range.
best techniques to increase your ev range and gas mileage, slow down, drive like a grandpa, and avoid the brakes or regen as much as possible while being safe. The brake lights will turn on as soon as you press the brake pedal. but that doesn't mean the friction brakes are engaged.
To prove to yourself that a brake isn't dragging, drive for a long stint (3-5 miles at high speed where you don't have to brake much, regen in L until you are almost to a stop, then stop with the brakes. Get out and carefully touch the calipers. If they are all cold, then you are fine, but if one is warmer than another, you have a brake pad dragging.