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Thread: Reccomended tire pressure

  1. #1
    Join Date
    Mar 2019
    Location
    Johnstown, PA
    Posts
    17
    My Cars
    2017 BMW 3series wagon

    Reccomended tire pressure

    I have a '22 M340; the summer tires are the 19" Michelin Pilot Sports, with the staggered setup.
    For winters, I've squared up 18" Pirellis.
    Always been a tire pressure geek; check everything in the house, first of the month, and the electronic readings from time to time.
    My doorpost sticker says 38psi the whole way around, and that's what I've been using (and yeah, I fudge for the difference in temperature for outside our 45* garage)
    Since changing to the winters (and wading thru' three menus to reset system), I've been checking the pressures more frequently, and seem to be getting different required pressures; maybe 37 front, 39 rear.
    I'm more curious than worried; anyone else run into this, and what pressures do you run?
    Thanks,
    Dan

  2. #2
    Join Date
    Jun 2005
    Location
    New England
    Posts
    25,402
    My Cars
    F90 M5; E36 M3 Turbo
    The door jamb sticker may default to full load, high speed (sustained 100+ mph that you can’t really do in the US). Check the owner’s manual for alternative settings. May also be in the idrive.

  3. #3
    Join Date
    Mar 2019
    Location
    Johnstown, PA
    Posts
    17
    My Cars
    2017 BMW 3series wagon
    The idrive is where I was seeing the alternate tire pressures suggestions.
    Dan

  4. #4
    Join Date
    Sep 2011
    Location
    Milton, WV
    Posts
    1,286
    My Cars
    2002 BMW 530i Sport
    Too many variables to be able to say what pressure is recommended for your vehicle. Sidewall stiffness, tread hardness, camber, etc. etc. etc. etc.

    If you're that much of a tire pressure geek then you likely know this. Each vehicle/tire combination will require dialing in to determine optimum pressure. Use your geekiness tendencies and do just that; dial it in.

    I current run 38 psi all around on my e39 with Michelin AS3+. The previous continental DWS06, which sucked for me but many love, required 40 psi to run remotely smoothly and not feel squirrely when hitting the off ramps etc. I could never get them balanced after many tries at multiple locations. 40 psi was the compromise.

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