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Aero wheels or wheel covers

Discussion in 'Model S: Driving Dynamics' started by iridium, Jul 24, 2015.

  1. iridium

    iridium Member

    Jul 10, 2012
    Scottsdale, AZ
    The discussion around the cost of upgrading to the 90kwh battery got me wondering, is that the most cost effective way to increase your range by a few %? I recall aero wheels offered a couple % increase, is that true? Could the same be accomplished with aero wheel covers?
  2. araxara

    araxara S-P85#3,218 X-90D#3,299

    May 11, 2012
    Tucson, AZ
    I went from 21” Tesla Turbine Wheels with summer tires to Tesla Aero Wheels and Michelin Primacy tires. My Wh/mi was about 292 at 17k mi with the 21” wheels. Now, at about 57k mi with the Aero Wheels, I’m at 289 Wh/mi. That’s about a 1% improvement. I was suppose to get 4% improvement from the Aero Wheels and a further 4% improvement from the Primacy tires. As a matter of fact, my initial few thousand miles on the new “Aero” setup still yielded 292 wh/mi. Of course, there have been several software updates along the way and who knows if the kWh usage displayed has remained consistent.

    Maybe Aero wheel improvement is only in high speed highway driving. Most of my miles are driven to the White Mountains at about 55mph average speed, although I do drive between Tucson/Phoenix (75-80mph) and have made several trips to CA and Las Vegas.

    Oh, and if I had a choice between a 90D or the P85 that I have now, I would pick the 90D with turbine wheels for the added range. It seems the Tesla Turbine wheels are about as aero efficient as their previous Aero wheels.
  3. sorka

    sorka Active Member

    Feb 28, 2015
    Merced, CA
  4. scaesare

    scaesare Well-Known Member

    Mar 14, 2013
    Pizza Pans are cheap at Costco... especially in the multi-pack.

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