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Check you spare...mine was inflated to 90 pounds at the factory...

Discussion in 'Prius v Main Forum' started by Mike500, Apr 4, 2012.

  1. Mike500

    Mike500 Senior Member

    Joined:
    Mar 1, 2012
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    Vehicle:
    2012 Prius v wagon
    Model:
    Two
    I took everything out of the bottom of the cargo area and checked the pressure in the spare, today. It was no easy task. The tow foam carriers were loaded with emergency supplies and tools. I have the extra top carpet provided to me by Southeast Toyota. To make it even more difficult, the jack and tool holder had also to be removed and the tire had to be removed and turned over to get to the valve stem.

    It's 79 degrees F outside, and my donut spare was inflated to 95 pounds that the factory. I guess they assumed that it will be several years, before I use the spare, if at all, and by that time, the air would have leaked to somewhere near the recommended inflation pressure of 60 pounds.

    I released some air to get it to 70 pounds, since it will be less in the winter.

    90 pounds plus is the pressured need for my Class C trailer tires.

    I'll check the spare once a year from now on.
     
  2. Skoorbmax

    Skoorbmax Senior Member

    Joined:
    Mar 19, 2010
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    Location:
    Western NY
    Vehicle:
    2010 Prius
    Model:
    II
    I think it's likely OK. I've noticed how miraculously spares seem to hold pressure, but given its thinner profile it certainly would need to have more pressure than regular tires to avoid running on the rims of the wheel.