Correct Tire Pressure - Hyundai Forums : Hyundai Forum
 
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#1 Old 04-27-2011, 03:46 PM
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matt71
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Can anyone explain why the user's manual and the tag on the driver's side of the car say to inflate the tires to 32 psi but the tires can go up to I think around 44 psi? Wouldn't higher inflation mean better gas mileage?
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#2 Old 04-27-2011, 03:48 PM
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ranjo
Yes, this is what I thought but then your tires will wear in the middle faster due to the higher pressure. The 32 PSI is the manufacturer's recommended for the best "ride". I would sure like to know how much higher you can go before you start
wearing the tires out prematurely.
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#3 Old 04-27-2011, 03:57 PM
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The pressure on the tire is the maximum the tire can hold but every car has been tuned for a certain tire pressure, always inflate your tires according to the pressure on the driver's side tag for best fuel economy and best handling. Too much pressure will result in a harsh ride and faster wear of the tires.

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#4 Old 04-27-2011, 05:00 PM
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imkramer
I've always "cheated" a little and kept mine at about 34-35 psi. I find that gives me a good balance of ride, fuel ecomony, and tire wear.
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#5 Old 04-27-2011, 05:37 PM
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32-33 feels good to me but 34+ seems to lose stability at highway speeds.

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#6 Old 04-27-2011, 06:29 PM
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QUOTE (someguy @ Apr 27 2011, 04:37 PM)
Quote:
32-33 feels good to me but 34+ seems to lose stability at highway speeds.
+1. 33 is perfect for me.
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#7 Old 04-28-2011, 11:54 AM
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BobMAz
QUOTE (Xion Nider @ Apr 27 2011, 11:57 AM)
Quote:
The pressure on the tire is the maximum the tire can hold but every car has been tuned for a certain tire pressure, always inflate your tires according to the pressure on the driver's side tag for best fuel economy and best handling. Too much pressure will result in a harsh ride and faster wear of the tires.
Additionally, running tires at their maximum pressure can cause them to burst when hitting potholes, pipes, or other objects in the road. It does not allow the tire to flex and absorb the impact of the object.

Bob
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#8 Old 04-28-2011, 09:12 PM
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matt71
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Thanks for the feedback. I checked my tires which the dealer inflated when I picked up the car almost two weeks ago and they are around 35 psi. I'm going to keep them there for now and let them naturally deflate to 32 psi.
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#9 Old 04-28-2011, 09:40 PM
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I checked mine after leaving the dealer's lot. The "PDI" report showed "32 psi." Actually, they were 37 psi...thought maybe my gauge was incorrect, so I checked it with an electronic one in the garage which I had calibrated at work some time back. Yep...37 psi. I have since dropped them to 34 and still thinking I might let them drop to 32 on their own.

While we're on the subject of tires, not enough can be said for the importance of rotating those tires for maximum wear. It's gonna be a financial investment when I have to pony up to replace those 17" Continental ContactPro's that came on the car. Cha-ching!!!!!!!!!

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#10 Old 04-29-2011, 12:18 PM
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imkramer
QUOTE (matt71 @ Apr 28 2011, 08:12 PM)
Quote:
Thanks for the feedback. I checked my tires which the dealer inflated when I picked up the car almost two weeks ago and they are around 35 psi. I'm going to keep them there for now and let them naturally deflate to 32 psi.
That's what I've always done...I inflate them to 35, then as they deflate to about 32-33, I bring them back up again. So on average mine are at about 34. I check them periodically along the way to ensure they are deflating evenly.

One simple note of advice to anyone may not already know: Regardless of whether you choose to keep your tires at 32psi or higher, for a true reading, always check the tire pressure when the tires are cold (because the pressure will always be higher when the tires heat up after only a few miles)
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