Run Flat Tires

Tiny
PCULQUI
  • MEMBER
  • 2005 TOYOTA SIENNA
  • 3.3L
  • V6
  • 4WD
  • AUTOMATIC
  • 110,000 MILES
These vehicles come with Run Flat Tires. When I purchased the vehicle, I noticed it didn't have Run Flat Tires. Did the previous owner have to do some modifications to install the Cooper Tires CS5 it has now?
And, if it still had Run Flat Tires and one tire went bad, could I have replaced it with a regular tire or not.
Tuesday, November 3rd, 2020 AT 11:38 AM

2 Replies

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

There is no type of special rim design or modifications to mount a Run Flat tire. It is the design of the tire itself. If you say the Run Flats are not there anymore than the previous owner must have installed the Cooper brand tires. Most tires when being driven on flat or excessively low will get ruined by the rubbing of the rim edges near the bead and will shave off the rubber while being driven and ruin the sidewall. Most tire shops when they remove the tire and notice this will not repair the tire. Hope this helps and thanks for using 2CarPros.
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Tuesday, November 3rd, 2020 AT 12:10 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
If this vehicle is 15 years old it has had many tire replacements so if you just bought it and it has Coopers on it now then yes, the previous owner went with a cheaper tire.

When tires wear out you want to change the in pairs or all 4 at the same time just to keep the tread wear even.

However, a run flat tire technology is contained in the tire so if you have 4 run flat tires on it and you want to only replace one tire then you can install any tire you want. Again, I would not replace just one unless the tread depth is pretty close to being new. Let me know if you have other questions. Thanks

https://www.2carpros.com/articles/flat-tire-change-it-easily-by-watching-the-pros
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Tuesday, November 3rd, 2020 AT 12:30 PM

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