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Old 10-31-2012, 10:25 PM   #72
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Originally Posted by suss6052 View Post
Basically its only meant to show a gross under inflation but otherwise you're supposed to pay attention. Its really only a legal cya for the manufacturers mandated by the government.
That's not what I was asking, it was the comment about not being able to detect when all four tires are low at the same pressure.

Direct systems measure the actual pressure for each tire, not pressure differentials between tires.
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