TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker and becoming a Supporting Member. For more info: Support TMC

Motor efficiency - break in?

Discussion in 'Model S: Driving Dynamics' started by pairtrader, Jun 11, 2014.

  1. pairtrader

    pairtrader Member

    Joined:
    Jan 26, 2014
    Messages:
    207
    Location:
    Vancouver
    After a few thousand km on my Model S, it seems that my range has improved a bit. I have no data or expertise to back this up, but it really seems as though my efficiency has improved. My kWh/km continues to slowly trend down. Is there any chance that the motor has been broken in a bit and increased it's efficiency, or perhaps the gains are all from more efficient driving and slower speeds. Any input?
     
  2. David99

    David99 Active Member

    Joined:
    Jan 31, 2014
    Messages:
    3,232
    Location:
    Brea, Orange County
    I never heard of a break in time for electric motors. The design doesn't suggest that either.
    Maybe it's increasing temperatures? A less wet road can make a noticeable difference. Maybe you are getting more used to the car. I remember it took me a while to get used to driving with regenerative braking.
     
  3. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

    Joined:
    Mar 8, 2012
    Messages:
    13,517
    Location:
    Texas
    There is no break-in for an electric motor. There may be break-in for the reduction gears, though I doubt it. More likely it's weather related.
     
  4. djp

    djp Roadster 2.0 VIN939

    Joined:
    Aug 28, 2011
    Messages:
    1,113
    Location:
    Toronto, Canada
    Agreed, warmer air is less dense and rain will also hurt range. You'll see better numbers in summer than winter.
     
  5. pairtrader

    pairtrader Member

    Joined:
    Jan 26, 2014
    Messages:
    207
    Location:
    Vancouver
    Thanks. This is my first season change with my S85 and it bodes well for my summer road trips.
     
  6. darthvdr

    darthvdr Member

    Joined:
    Jul 13, 2013
    Messages:
    310
    Location:
    los gatos, ca
    I asked the same question when we first took delivery and DS told us we can drive our P85+ hard immediately.
     
  7. Brass Guy

    Brass Guy Member

    Joined:
    Jan 5, 2014
    Messages:
    783
    Location:
    Holbrook, MA
    Either the weather, or your demo thrill rides are diminishing as you've shown it off to all your friends by now.
     
  8. Alipapa

    Alipapa Member

    Joined:
    Jan 22, 2013
    Messages:
    224
    Location:
    Hong Kong
    Is there any oil or grease in the reduction gearing?
     
  9. drees

    drees Active Member

    Joined:
    Jun 23, 2009
    Messages:
    1,205
    Location:
    San Diego
    Tires will break in over the course of a couple thousand miles, and the rolling resistance will go down.
     
  10. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

    Joined:
    Mar 8, 2012
    Messages:
    13,517
    Location:
    Texas
    Yes, there is lubricant.
     

Share This Page

  • About Us

    Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.
  • Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


    SUPPORT TMC