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Discussion Starter · #1 ·
i went to the gas station to check my tire pressure and i'm not sure if it was accurate or not. vwong recommended 40psi with my 225/35 tires and said that they were 40psi.
when i went to check the tires, they were at about 45. was the tire gauge at the gas station correct? or was vwong wrong?



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I wouldn't trust the ones at the gas stations. The last time I went, I was waiting for this lady with her Sentra to finish. Finally I offerred to help. "What pressures do you want?" I said. "38," she said. I check her pressures, they were OVER 60psi (max on my tire pressure gauge). Not good
 

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Agreed. NO! Even regular gauges form the store vary wildly from one to another and brand to brand. By all means, stay away from high-usage ones like that, and try to get a good quality "needle" gauge and not the stick-type.
 

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Gas station guages are notoriously unreliable. I carry a needle guage in my car which is very precise, use the gas station airline then check the pressure with my guage and adjust accordingly.

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Since we're talking tire pressure gauges... Does anyone know how much better the liquid ones are? They seem to be pretty costly, anywhere from $20-60. Worth it?
 

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Considering I have owned air pressure gauges that were about $80, I don't find $20-$60 to bee too awful much



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Ok, so were they worth it? What does it offer that makes it so expensive? Gold plating or something? j/k
 

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ok, first of all i always use the tire pressure guage that goes witht the pump at my local cheveron station. i also have a very reliable digital one i keep in my trunk. whenever i go for a pump, it is usually very accurate with my digital one which i know is totally accurate. i dunno about u guys but the one at that station is just fine. u just gota make sure u press it quickly like 3-4 times before actually reading it. also, take into account ur tire pressure builds up easily after driving especially when hot. so check the pressure when in the morning before u do ur daily stuff...

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Discussion Starter · #9 ·
<font face="Verdana, Arial" size="2">Originally posted by marcucci:
Agreed. NO! Even regular gauges form the store vary wildly from one to another and brand to brand. By all means, stay away from high-usage ones like that, and try to get a good quality "needle" gauge and not the stick-type. </font>
how much would a good quality "needle" guage run? yea, and what makes them good quality?


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As long as you don't get the ones that look like pens, I think you're ok


I'm wondering if the ones that cost more ($20+) are worthwhile though. Where's the point of diminishing return?
 

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Get a racing type from Longacre Racing and feel the difference. The guarantee alone makes them worth the $40.
I check my tires cold-before leaving home. This is important as the temperature of the tire affects the pressure. Something to consider.
 

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Aren't you supposed to measure tire pressure only when it's warm? I'm not really sure. Also couldn't the needle type gauge be affected by temperature, since many(i think) have a spring on the inside.
 

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You can get good accurate digital gauges for $10-$20 with a lifetime guarantee. Spending more wouldn't be worth it for most mortals.

For regular driving, ALWAYS check the tire pressure COLD. For racing, check it HOT.
 

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<font face="Verdana, Arial" size="2">Originally posted by 97SH:


For regular driving, ALWAYS check the tire pressure COLD. For racing, check it HOT.
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Please explain? You're looking for max. pressure, yes? Max pressure would be achieved when the air is hot and expanding, not cold and contracting, right? Or am I just confused...

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Just goto Autozone or Pepboys and get one of the dial air gauges with a bleed off valve and you will have a good and accurate gage. Never use the gas station gauge for nothing more as a very loose guestamate. I just had an experience when I needed a few pounds before an autox before I got teched and went to get some at a bp. I forgot my gauge so I had to use theirs and it said i had 44 and came back with 39, must have hit a huge pothole or something I dont remember....


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[This message has been edited by Darth Luder (edited May 03, 2001).]
 
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