My Space-Saver spare wheel (doughnut or mini-spare) no longer holds air so I am thinking about putting an inner tube in it.

Can I do this?

  • Hi, Welcome to mechanics.SE :) What size is the doughnut? How old is it? Does it have a puncture or damage? Has the tyre been used?
    – George
    Nov 13 '18 at 18:40

Not likely, where you going to but the valve for the inner tube? Also why would you depend your life and 3-4k pounds of metal on something that wasn't designed to do so? Go get a $5 spare from the junker if your trying to save money

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