The side of the road is not a fun place, especially on a really cold or hot day. Depending on the situation and weather, it can be a very dangerous place to stop.
To try to prevent having to stop right away when you have a tire problem, a technology called Run Flat Tires is available.
If you are not sure if your car is using run-flat tires, then check your vehicle and look at the tire sidewall for the letters RFT.
Run flat tires allow you to drive for a limited distance and reduced speed after you suffer a puncture or any other event that results in either a drop in tire inflation pressure or a complete loss of inflation pressure.
For example, the MICHELIN® Zero Pressure (ZP) tires provide run-flat technology that allows you to drive up to 80 kilometers at 90 kph with a flat tire.
You can never mix run flat tires with tires that do not have run flat technology (conventional tires) unless it is an emergency situation on a limited and temporary basis. The conventional tire should then be replaced with a run flat tire as soon as possible. It is also not recommended to mix different run flat technologies/products.