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Tire pressure question...

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Old Nov 25, 2006 | 09:33 PM
  #1  
windcalmer's Avatar
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Default Tire pressure question...

Is there any difference between the tire pressure with the tires on the car and off the car?

Meaning, if you have the car jacked up and adjust the pressure will it be wrong?
 
Old Nov 25, 2006 | 09:38 PM
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Technically speaking it will be different, because the weight of your car adds to the pressure. In practice, i believe the difference is too small to consider it seriously.
 
Old Nov 26, 2006 | 02:57 PM
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That is what I was wondering. I didn't think it would be enough off to really matter. Thanks.
 
Old Dec 1, 2006 | 11:41 PM
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Default RE: Tire pressure question...

it'll be a little off considering the weight of the vehicle decreases the area inside the tire walls while the tire pressure isn't changing.
 
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