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Discussion Starter #1
Bought this and it's like 5psi different then my gage.
Are these electronic ones correct?
I like a good one because am getting some pull on freeway.



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You'll have to compare it to a KNOWN accurate gage. There are a lot of differences between an E gage and a Boron-tube (flexing tube) design.
Tire wear may be a better example of the correct pressure than the reading on a gage.
 
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All of the electric tire pressure gauges i have every used have been junk.
 
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I used that once and it fell apart in my hands.
 

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Searching around, it would seem that there is no such thing as an accurate consumer grade tire pressure gauge.

However, they should all be reasonably consistent, in that if it reads a given pressure as 32psi today, it will read 32psi next week as well.

Just got to find your sweet spot, like PVMT suggests, using the chalk method or wear over time. Then you'll know when that gauge reads Xpsi, you are good... even if X is actually Y. In reality, the suitable pressure is a range that is likely within the accuracy of any gauge which is why there is no market for a hyper accurate gauge.

I have been using a simple spring loaded pencil gauge from AutoZone (like this one). It is instant and consistent, even if it is dead ass wrong. lol
 

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Longacres Racing Products has great gauges.
 
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