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#4443347 - 06/28/17 12:21 AM Parked car with deflated tires, sidewall damage?
HKPolice Offline


Registered: 03/31/12
Posts: 509
Loc: Toronto, Canada
Family friend let her Camry sit in the garage for 2 years straight. 2 of the tires got deflated probably due to a slow leak from the valve stem or bad contact with the rim. Are the sidewalls permanently damaged now?

I know there will be major flat spotting that may be permanent, but if that fixes itself after a few days of driving I wonder if the sidewalls will hold up?

What are your experiences?

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#4443350 - 06/28/17 12:25 AM Re: Parked car with deflated tires, sidewall damage? [Re: HKPolice]
dishdude Online   content


Registered: 11/14/08
Posts: 8730
Loc: Phoenix
As long as they weren't driven on, they should be fine.
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2018 Challenger SRT

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#4443354 - 06/28/17 12:50 AM Re: Parked car with deflated tires, sidewall damage? [Re: HKPolice]
901Memphis Offline


Registered: 08/14/10
Posts: 12893
Loc: Northern Kentucky
That's a pretty long while to sit flat. See how they look and feel after being aired up. You'll probably want to over inflate them to help with the flat spotting.
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2012 Chevy Cruze LT 1.4T - 50k
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#4443357 - 06/28/17 12:59 AM Re: Parked car with deflated tires, sidewall damage? [Re: HKPolice]
Reddy45 Offline


Registered: 08/15/08
Posts: 2962
Loc: USA
I'd be more worried about the gasoline...

Tires can be easily replaced and have little to no ill effect on surrounding items.

Gasoline that potentially had ethanol in it would have absorbed moisture from the atmosphere.. oh boy..

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#4443445 - 06/28/17 06:06 AM Re: Parked car with deflated tires, sidewall damage? [Re: HKPolice]
LoneRanger Offline


Registered: 07/02/07
Posts: 4047
Loc: Midwest USA
Replace tires before driving.
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'09 Subaru Forester ...................(QSED DEXOS1 5W30)
'16 Moto Guzzi Stelvio 1200 .....(ENI i-Ride PG 10W60)

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#4443458 - 06/28/17 06:35 AM Re: Parked car with deflated tires, sidewall damage? [Re: HKPolice]
nwjones18 Offline


Registered: 11/30/09
Posts: 1052
Loc: Warner Robins, GA
IMO tires that have sat flat for any period of time need to be replaced.
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#4443494 - 06/28/17 07:44 AM Re: Parked car with deflated tires, sidewall damage? [Re: nwjones18]
Kira Offline


Registered: 08/19/10
Posts: 5203
Loc: Champlain/Hudson Valley
My friend's Ford sat 2 years on a flat and we overinflated it (push out any flat spot) and we saw no reason to toss the tire.

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#4443527 - 06/28/17 08:18 AM Re: Parked car with deflated tires, sidewall damage? [Re: HKPolice]
barkingspider Offline


Registered: 12/22/13
Posts: 2040
Loc: socal
My ex girlfriend's dad did the same thing w his benz. I took the wheel / tire to a local shop I trusted and he recommended tire replacement because the sidewall was damaged so that is what we did.
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#4443652 - 06/28/17 10:26 AM Re: Parked car with deflated tires, sidewall damage? [Re: HKPolice]
BrocLuno Offline


Registered: 09/06/15
Posts: 5506
Loc: Kalifornia Kollective
Any obvious stress cracking ...

You'll get safety concious folks who would replace. And gamblers that would drive on them. How far, how fast, in how much heat - all depends.

In Alaska I'd run them until they blew. And have three spares in the back. In AZ in Phoenix in the summer on the freeway, maybe not ...


Edited by BrocLuno (06/28/17 10:29 AM)
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Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

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#4443766 - 06/28/17 11:45 AM Re: Parked car with deflated tires, sidewall damage? [Re: HKPolice]
raytseng Offline


Registered: 12/11/08
Posts: 2332
Loc: CA
what do you plan to do with the car? let it sit for another 2 years or start to use it?

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#4443790 - 06/28/17 12:08 PM Re: Parked car with deflated tires, sidewall damage? [Re: HKPolice]
HKPolice Offline


Registered: 03/31/12
Posts: 509
Loc: Toronto, Canada
Pumped the tires up, doesn't seem to be flat spotted surprisingly, no bulges on the sidewalls either. Pirelli P4 all seasons will keep an eye on them.

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