Bought a pair of 305/30/20 Pirelli Pzero (NOT runflat) tires from a used tire shop who also mounted and balanced them on my 2013 mustang gt for me. I’m running 10 inch wheels.
The tread on both tires is in good condition probably 75-80% or so on each tire and the DOT date on both is 3821 and 4021 so they are pretty much 3 years old.
Upon inspecting them before purchase I did not see the faint lines in the sidewall that can be seen in the attached photos. Only one tire has these faint lines in the sidewall the other tire does not.
I did not notice the lines before purchase maybe because the tire wasn’t being stretched over the wheel when I inspected them or maybe they were there and I just wasn’t looking close enough…
In any case, should I be worried about these faint lines on one of the tires? I don’t know if this is the sidewall cracking or is this tire in the very early stages of being borderline unsafe…should I be going back to the shop and complaining or is this nothing to worry about? How much longer do you think these tires would last, specifically the questionable one?
If I read this right you put 2 used low profile tires on the rear of your vehicle .If these things have less tread than the front or even a different brand I think you are asking for trouble. @CapriRacer Sending you a Bat Signal because this is right up your alley.
Capri is the member here who is the only online person I trust for tire questions.
In the meantime you should visit the tire shop and see what they say.
The fronts are pirelli pzeros as well albeit 255/35/20 compared to the 305/30/20 on the rear (this is not a concern as people run staggered setups all the time). Both rear tires are pirelli pzeros as well. Just based on the lines on the tires alone is this something to worry about? Just wanted to get someone elses opinion before going back to the shop.
Staggered is not the problem. The tire replacement guide is the new tires always go on the rear . This also means that used tires on the rear should have more tread than the front to prevent Hydroplaning problems.
I’m not a fan of used tires. I understand and acknowledge new tires are expensive and all that. But there’s a real trade off for the cash “savings”. This is just an example.
When I bought my car used, it had some tires on it that were older. The tread was good, though, so I didn’t worry too much. The first few times it rained, though…the car nearly slid off the road several times. It scared me enough that I went out and bought a brand new set of Goodyears. Never had a problem since.
Front tire wear more on a fwd car. That’s why you rotate.
I only bought one used tire. Blew a rear out pulling a trailer 200 miles from home. Paid $20 for a used tire that got me home where I could put four new ones on.
No problem saving some money but ya gotta ask why the guy took them off in the first place. Used tires come off when new ones are put on.
Same here, all the others I got for free. I put used tires on at least 10 cars and trucks.
Many different reasons: they could be stolen, owner may have changed wheel size, take-offs because the tire tech installed the wrong size, or a con man told the customer “We only sell sets of four”.
I had 5/32 tires replaced because of an incident with one and winter was coming. I told the shop maybe someone could use them since they were still ok. The shop said no, they won’t sell used tires.
We keep bouncing around. On an awd, it can be important to have all four tires within diameter specs. Not all cars but some so check. Having one or two newer tires can be hard on the transfer case. Again not all makes are as fussy. But it’s not the handling issue.
The question though was on the condition of the used tire, not whether to put on front or rear etc.
Not to steal Capri’s thunder, but I went through the process of proving that the OEM door placard cold pressures carried, at minimum, 110% of gross axle weight, and I got laughed off the board?
