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Old 07-13-2007, 12:28 AM   #1
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Default Oil Pressure Gauge Marks

This is probably a stupid question, but it seems our pressure gauge doesn't increase at a linear rate (well it does in each respective half I think). Do I have these hash marks labeled correctly then?

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(not my car by the way)
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Old 07-13-2007, 12:39 AM   #2
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Either does the temp gauge
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Old 07-13-2007, 12:45 AM   #3
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I don't even look at the temp gauge since I've got my Aeroforce running with exact numbers But good point!
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Old 07-13-2007, 01:33 AM   #4
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Especially the oil gauge, they tend to be a bit inaccurate. For the oil pressure, anywhere from 5 to 10 psi. So I just dont bother anymore. The way you marked it in that pic is how I see it.

And the way they mark those gauges leaves me scratching my head. Why, GM?
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Old 07-13-2007, 11:17 AM   #5
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I'd say you labeled it properly.

As for the accuracy.. yeah.. After having my Aeroforce...and you having yours.. think of the temp vs temp gauge and apply that to the oil pressure gauge. It'* a guideline not an accurate instrument of measuring technology like Stan would hang out his window.

I look at it this way..if the gauge is consistent and you know about what the reading is..that is close enough, considering the number of cars produced for years w/o any gauges and only idiot lights.

Or think of it in terms of most Ford cars low and high or cold and hot are the only markings at the outter edges of the gauge with a big "normal" in the middle. Yup..it'* always normal.
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Old 07-13-2007, 12:28 PM   #6
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Yes, your numbers are right. The gage scales are nonlinear.
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