Tires
Intermediate
Joined: Mar 2021
Posts: 361
Likes: 125
From: Arizona
I'm new to this forum; just bought a 2022 LC 500 convertible. I have a couple of comments/questions regarding the tire discussion.
My understanding is that once a RF tire is used without air pressure (running flat), it should be replaced regardless of where the puncture is located, if it was driven on for any distance. This is because, even though the tire allowed for limping home, it has been over stressed due to operating without air pressure support and may have suffered internal structural damage to the point of compromising safety. So, does anyone have experience with a Lexus dealership repairing a punctured RFT?
Regarding changing the tire OD for the front tires, wouldn't that affect the speedometer or possibly the electronic stability control?
Thank you, I'm already learning a lot on this forum.
My understanding is that once a RF tire is used without air pressure (running flat), it should be replaced regardless of where the puncture is located, if it was driven on for any distance. This is because, even though the tire allowed for limping home, it has been over stressed due to operating without air pressure support and may have suffered internal structural damage to the point of compromising safety. So, does anyone have experience with a Lexus dealership repairing a punctured RFT?
Regarding changing the tire OD for the front tires, wouldn't that affect the speedometer or possibly the electronic stability control?
Thank you, I'm already learning a lot on this forum.
Advanced
Joined: May 2021
Posts: 722
Likes: 315
From: Georgia
No reputable shop wants to deal with the liability associated with repairing a RF tire. If you want to fix it, assuming that the tire didn't go below recommended pressure levels, you more than likely will have to DIY and assume the risk.
Intermediate
Joined: Mar 2021
Posts: 361
Likes: 125
From: Arizona
Good idea. I had 13k on my RF's and the dealership told me I needed them replaced. I called BS and have almost at 17k and they are fine. Don't let them motivate you to replace them too soon. I seem to find tire shops are getting more and more aggressive with "making" people replace tires too soon. I live in Arizona so granted I don't need a ton of tread. I just don't drive in wet weather.
Intermediate
Joined: Feb 2022
Posts: 417
Likes: 115
From: FL
What are the 22 and 23’s coming with on the touring pkg? While looking for a 23 I seem to always find the B-stones. Personally I prefer Michelins but I did have potenzas that came on a new at the time Carrera S and they were pretty good. Have the Dunlop’s been discontinued for the LC or are they for the 20” wheels only. Not a fan of D’s, they came on my both my XKR’s and immediately replaced them with Pilots…night/day difference. The Jags are conventional not RF’s.
Going from a RF to non will help with a softer/smoother ride, none of the typical crashing sensation over bumps and will help with handling due to less unsprung weight. My choice would be the PS4’s in summer form.
Going from a RF to non will help with a softer/smoother ride, none of the typical crashing sensation over bumps and will help with handling due to less unsprung weight. My choice would be the PS4’s in summer form.
Intermediate
Joined: Mar 2021
Posts: 361
Likes: 125
From: Arizona
What are the 22 and 23’s coming with on the touring pkg? While looking for a 23 I seem to always find the B-stones. Personally I prefer Michelins but I did have potenzas that came on a new at the time Carrera S and they were pretty good. Have the Dunlop’s been discontinued for the LC or are they for the 20” wheels only. Not a fan of D’s, they came on my both my XKR’s and immediately replaced them with Pilots…night/day difference. The Jags are conventional not RF’s.
Going from a RF to non will help with a softer/smoother ride, none of the typical crashing sensation over bumps and will help with handling due to less unsprung weight. My choice would be the PS4’s in summer form.
Going from a RF to non will help with a softer/smoother ride, none of the typical crashing sensation over bumps and will help with handling due to less unsprung weight. My choice would be the PS4’s in summer form.
Advanced
Joined: Aug 2021
Posts: 669
Likes: 235
From: FL
Now. I did catch the puncture Right At the First lowER pressure warning and Did keep the air pressure up using a mini pump and they're certainly was no other damage to the tire other than the puncture.
It is very unusual for a tire to Blow Out without being low pressured for sometime. They most often blow out from the increased Heat from the low pressure Not from the puncture itself. The LC will usually alert you to a Low tire in Plenty of time for you to air it up.
I also don't believe Fodalo's statement that Most of us are switching to non RFs. I'm pretty sure he can't back that up.
Bruce in Fl
Last edited by BruceinFla; Feb 17, 2023 at 05:52 AM.
Advanced
Joined: May 2021
Posts: 722
Likes: 315
From: Georgia
Hey man…..Don’t shoot the messenger…..Its not just me .….Under certain conditions RF’s can be repaired….Reread previous posters who’ve commented on this similar issue…..And even tho you can’t believe everything on the internet, Mr Google has said the same a million times be it rite or wrong. There are always 2 sides to a issue. I fixed mine, Discount fixed yours....Consider yourself blessed. 
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huh? you wrote: No reputable shop wants to deal with the liability associated with repairing a RF tire.
so you're not just a messenger. as bruce points out, reputable shops like Discount Tire can and will repair a RF tire, no problem.
anyway, glad you were able to fix yours yourself. I'd rather drop by my local friendly discount tire! they fix flats for free.
so you're not just a messenger. as bruce points out, reputable shops like Discount Tire can and will repair a RF tire, no problem.
anyway, glad you were able to fix yours yourself. I'd rather drop by my local friendly discount tire! they fix flats for free.
Advanced
Joined: May 2021
Posts: 722
Likes: 315
From: Georgia
Sorry….That’s just the way I was raised…..Maybe it's a man thang….But I’ve never asked anyone to fix anything for me that I could fix myself…..I know you glad that somebody will do you for free.....
Advanced
Joined: Aug 2021
Posts: 669
Likes: 235
From: FL
I have plugged a tire on the side of the road and banked my life on that plugged motorcycle tire because I had to to get home. That's Not in the same Galaxy of Safety as having the dealer Remove the tire from the rim and use a combo patch/plug.
You were Partially correct. No reputable dealer is just gonna stick a gummy worm plug in your $100k car tire and send you on your happy way.
Bruce in Fl
Last edited by BruceinFla; Feb 18, 2023 at 05:38 AM.
.....You make an excellent point….Plugging is never the preferred method to repair any tire.....But for some industry specialists, repairing a RF tire isn’t either....
Advanced
Joined: Aug 2021
Posts: 669
Likes: 235
From: FL
