Tires - Cadillac Society

This topic has 8 replies, 7 voices, and was last updated 3 weeks, 2 days ago by funrides.

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June 29, 2019 at 7:03 am #8316

CorvetteRon
Participant

I don’t care for the “Run-Flat” tires that came on my ATS Coupe, Performance.
Anyone replace them with “Stop-Flat” tires?
If so, any problems or comments?

July 2, 2019 at 5:58 pm #8370

Alex Luft
Keymaster

Yeah, I didn’t care for the run flats on my ATS Sedan Premium when I got it. They make what is otherwise an excellent car quite noisy and limit its adhesion. Replaced them with Pilot Super Sports about 500 miles into my ownership. They are amazing on the ATS.

Obviously, the only problem is that there is no spare. That’s what I have roadside assistance for, which is part of the bumper-to-bumper warranty on the vehicle. When the warranty runs out, a good way to get it is through your insurance or, alternatively, via the cheapest OnStar plan.

August 7, 2019 at 6:48 am #70144

CorvetteRon
Participant

The DOT is about to make it mandatory to replace run-flat tires with run-flat tires.
I have a perfectly good set of run-flat, 40% worn, performance tires for sale:

Two tires 225/40 RF 18″ $125 ea.
https://www.bridgestonetire.ca/tire/potenza-re050a-rftmoeii/225-40r18

Two tires 255/35 RF 18″ $150 ea.
https://www.bridgestonetire.ca/tire/potenza-re050a-rftmoeii/255-35r18

February 13, 2020 at 12:25 am #72981

Tomez DeSilva Ph.D
Participant

I recently purchased a ATS Premium. How do I identify if I have run flat tires?

June 13, 2022 at 12:11 pm #90819

Caddy-girl
Participant

I’m obviously in the same situation as the previous blogger. I have a 2018 Cadillac ATS premium luxury. I’ve only owned the car for about 5 months, and it looks as though the tires have never been changed on the car. This fall I’d like to replace all 4 tires and I was thinking of replacing them with just regular michelin tires. I’ve never heard of the run flat tires. They do appear to look somewhat small for the vehicle. That being said, has anyone commented on whether or not we can buy regular tires for the car?

June 14, 2022 at 5:48 am #90911

CorvetteRon
Participant

Since my first submission I went ahead and replaced my run-flat tires with regular tires. I wish I had done it sooner.
It improved the ride, handling and tire life. I now carry a can of Stop-Flat, just in case.

November 29, 2022 at 9:25 am #93748

Calhoun2022
Participant

We replaced the run flats on our Ats with regular tires over a year ago from Costco and so far no problem.

October 28, 2024 at 9:09 pm #110162

funrides
Participant

I second what CorvetteRon mentioned about the Stop-Flat can, pretty good backup solution. My friend did something similar with his lexus and hasnt had any issues.
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