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Thread: Why oil pressure guage ?

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    Senior Member bellwilliam's Avatar
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    Default Why oil pressure guage ?

    I never quite understood the need for oil pressure gauge. can someone explain it to me ? it seems to me any time oil pressure goes low, engine go kaboom in 2 seconds, so why bother with an op guage.

    what does op guage tell you ?
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    Senior Member ryan's Avatar
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    Quote Originally Posted by bellwilliam View Post
    I never quite understood the need for oil pressure gauge. can someone explain it to me ? it seems to me any time oil pressure goes low, engine go kaboom in 2 seconds, so why bother with an op guage.

    what does op guage tell you ?

    Doesnt always kaboom as soon as its low. Could be a warning indicator. Put a big red light on it and if the light comes on.. shut it down.

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    Senior Member bellwilliam's Avatar
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    Quote Originally Posted by ryan View Post
    Doesnt always kaboom as soon as its low. Could be a warning indicator. Put a big red light on it and if the light comes on.. shut it down.
    that's my point. a big red light is good (I have it on my last track car). but why a gauge ?
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    Quote Originally Posted by bellwilliam View Post
    that's my point. a big red light is good (I have it on my last track car). but why a gauge ?
    oh... who knows.. i dont even have time to read a giant speedo on track.

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    Senior Member bellwilliam's Avatar
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    Quote Originally Posted by ryan View Post
    oh... who knows.. i dont even have time to read a giant speedo on track.
    you are too busy watching your rear view mirror to make sure no bozo punted you ?
    my question is general, not just for track though.
    I do look at almost every gauge, and use the info from it. but I always get lost on an op gauge is telling me.
    Last edited by bellwilliam; 01-25-2010 at 04:01 PM.
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    Mine told me that my oil cooler sprung a very small leak. I wouldn't have noticed it otherwise.

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    cant an oil pressure gauge also tell you oil temp? because my stock pressure gauge would be at a certain pressure on a daily use.. but soon as i hit the track that gauge would drop a bit, i figured it was giving me an idea of how hot my oil is getting.
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    It is one way to tell the condition of the oiling system. If your oil pump is not working as it should; you are very low on oil or potentially something else is wrong, you would see it in lower pressures (idle, cruising or wot).

    Granted if you completely lose oil pressure the gauge will not save your motor but it has told me that there are issues that I need to address.

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    its not always that you'll lose oil quickly. sometimes pressure loss will be slow. so there's a possibility you can save the motor.
    i had a friend driving at streets, who was losing oil but luckily he noticed his gauge reading low and shut down the motor before any damage could occur.
    Last edited by Alex5; 01-31-2010 at 09:41 PM.
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    Quote Originally Posted by Alex5 View Post
    its not always that you'll lose oil quickly. sometimes pressure loss will be slow. so there's a possibility you can save the motor.
    i had a friend driving at streets, who was losing oil but luckily he noticed his gauge reading low and shut down the motor before any damage could occur.
    +1

    It's hard to read a gauge while driving, so a strip of red tape on the gauge to indicate the warning level as well as an idiot light would be good ideas. An idiot light alone would work too but its nice to see what's going on after the light comes on and whether to back off and straighten the car out or to immediately shut it down.

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