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how dangerous is 50 psi on stock tire?

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Old 06-21-2008, 05:20 AM
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oldsnail
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Default how dangerous is 50 psi on stock tire?

did oil change two days ago and i just realized dealership put 50psi on all four tires.
Old 06-21-2008, 05:22 AM
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calin
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Isn't normal psi like 34 or something? 50 seems a bit high...
Old 06-21-2008, 05:31 AM
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cheshirecat79
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It should be 35. However, if you look on the outside of your tires, there should be a max psi rating. I believe this is actually 50 for the reo50a. Can't remember.

You're not going to blow the tire, but you will see uneven tread wear. Just let some air out until you get them down to spec.
Old 06-21-2008, 05:35 AM
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DavesZ#3
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It's not as dangerous as it appears. The max PSI rating for the Potenza RE050 is about 50-51 psi anyway. That's at the max PSI at max load of 1400lbs per tire. That means that you'd have to have the Z and contents weigh 5600lbs to get each tire to it's max rated weight. You were well under the max condition.

I bet it rode like hell though.

Here's where your concern should be - I'd bet that the tech at the dealership read the max psi rating from the sidewall rather than lookup the correct tire pressure from the manual or door jamb plaque. I'd call the service adviser at the dealership and make them aware of the problem.
Old 06-21-2008, 06:01 AM
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TreeFiddyZee
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In addition to what others have said, when you get the tires heated up, the pressure will rise quite a bit more. Let some air out.
Old 06-21-2008, 06:06 AM
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haeshik
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Originally Posted by TreeFiddyZee
In addition to what others have said, when you get the tires heated up, the pressure will rise quite a bit more. Let some air out.
+1 on letting some air out
Old 06-21-2008, 06:14 AM
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fabcas311
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[IMG][/IMG]
Old 06-21-2008, 06:48 AM
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sry110
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Yeah let some air out. It probably feels like you're riding in a conestoga wagon at 50 psi.
Old 06-21-2008, 10:52 AM
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If I had a choice between 35 plus 15 PSI or 35 minus 15 PSI, I would choose 50 PSI.
Old 06-21-2008, 01:28 PM
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lower the psi stat!
Old 06-21-2008, 04:09 PM
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350z2k3
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<---Could you still do this at 50 psi?


If yes: All is well


If no: (dealer)
Old 06-21-2008, 04:38 PM
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DavesZ#3
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Huh????
Old 06-21-2008, 08:26 PM
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Ilov350ZEE
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thats a stupid tech
Old 06-21-2008, 09:18 PM
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chromesilver6
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Just think about it, this idiot that put your tires at 50 psi changed your oil too!!! Goodluck with all that. Or what i cant tell if they did it or not. Ethier way did the dealer just put air in your tire or did they perform another service. ?
Old 06-23-2008, 10:21 AM
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Master Shake
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Originally Posted by chromesilver6
Just think about it, this idiot that put your tires at 50 psi changed your oil too!!!...
Yeah, hopefully they put the correct oil filter on too -- assuming they actually changed the filter, and remembered to put the oil back in.
Old 06-23-2008, 10:23 AM
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Motormouth
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40 is like 'road trip' pressure for me. ouch!
Old 06-23-2008, 10:31 AM
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The Captain
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Originally Posted by DavesZ#3
It's not as dangerous as it appears. The max PSI rating for the Potenza RE050 is about 50-51 psi anyway. That's at the max PSI at max load of 1400lbs per tire. That means that you'd have to have the Z and contents weigh 5600lbs to get each tire to it's max rated weight. You were well under the max condition.

I bet it rode like hell though.

Here's where your concern should be - I'd bet that the tech at the dealership read the max psi rating from the sidewall rather than lookup the correct tire pressure from the manual or door jamb plaque. I'd call the service adviser at the dealership and make them aware of the problem.
+1 Don't let crappy techs do this. This is how **** gets broken and you get fronted with the bill.

One time I got an oil and filter change and they barely put any oil in at all. I knew something was up before I left the lot when from a cold start, my oil psi was below 30. Went back and complained and they fixed the situation and gave me a free change next visit (they offered to wash the car too, but machine wash ftl so I told em no)
Old 06-24-2008, 04:27 AM
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Phreakdout
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Too much pressure and you cause wear to the middle of your tire tread. (You also have less effective contact patch with the road)

Too little pressure and you add wear to the outside and inside edges. (Again, poor / sloppy contact with the road)

Never trust someone else with your tire pressure. Get a gage and check it yourself when ever you are pumping gas. (I do mine while the pump is running.) The tires are at operating temperature. Be conscious of the current tire temperature. Very hot = higher pressure reading, Cold tires = lower pressure reading.
Old 06-24-2008, 12:13 PM
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Done Deal DR
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This is exactly why I didn't bother with an extended warranty. The only thing I care about is that the motor and tranny works, anything else I will fix myself because the chance of somebody else (especially the dealerships) messing **** up is far too great. IMO the only person who cares about your car enough is you. Everyone else is just doing a job for money (not to say that everyone sucks, but instances of simple things like tire pressure, putting the correct amount of oil in, etc, is far too great).

Get yourself a gage for a buck and check them yourself. Let pressure out accordingly until they are within factory specs that are detailed in the door jambs. 50psi is definitely extreme and probably feels like you're rolling on fred flinstone brand tires.
Old 06-25-2008, 08:32 PM
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Smiles350
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If you are running the car on the street then you should be about 5 psi below the max. If you are running on the track you should be about 10-15 psi below the max depending on the treadwear of the tire.


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