Tire Pressure Gauge

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You might get 39073 answers to this post. I have a Craftsman digital and its handy and very accurate. The dial gauges (that are not dropped and dragged across the garage floor) are the most accurate mechanical then the pencil with a square pressure ruler, then a pencil with a flat pressure ruler. I had a Slime gauge and it was very inaccurate.

For a mechanic dial gauge get one that only covers the intended pressure. So if tires should be 32 PSI, get a 0-50 rather than a 0-100. I was told by a gauge manufacturer you will get a more accurate reading that way.
 
I got a Walmart for $1 and it was completely accurate.

Buy cheap and then calibrate it against something accurate.
 
Digital ones are easier to read, but have no merit to being more accurate than a $1 pencil gauge.
A gauge can be right on or off, no matter what.
All my gauges read a bit differently, I use the ones that average the same.
 
I've got an expensive calibrated tire gauge, real nice with a rubberized dial and lever to pull to bleed air and all that. Should be nice at $75!

But guess what - it's no better than the SLIME brand digital one I got at autozone for a few bucks. Try the digital SLIME one's - they are pretty accurate - reads the same as my TPMS in the dash (and those sensors are calibrated very precisely) and are cheap.
 
Originally Posted By: zeke1985
Can anyone recommend a good accurate tire pressure gauge that wont break the bank? Thanks!



Check out the "EZ tire gauge" it is accurate, clamps on to the
tire valve, you can air up with the gauge attached and bleed off the excess if necessary. Two thumbs up! I should be around 20 dollars. I have seen it on e-bay recently.
 
Here is a study done back in 2005 that seems reasonably scientific for a tire pressure gauge. We have systems at work that can control and measure to +/- 0.005 PSIA.


http://www.mcnews.com/mcn/technical/200511gauges.pdf

And good on you for checking your tire pressure and caring, there are a lot that don't along with other poor maintenance habits, even on bikes, which is alarming. Countless times I hear hey my motorcycle is handling funny, when was the last time you checked your tire pressure? Oh I don't know. Shocking!
 
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Originally Posted By: JetStar
...Countless times I hear hey my motorcycle is handling funny, when was the last time you checked your tire pressure? Oh I don't know. Shocking!

That's especially sad.
eek.gif
 
Wal-Mart has tons to choose from, and none over about $15.

I got a Slime brand one from Wal-Mart. It was $5 or so. It works well enough for me. Its reading is consistent with the old pencil gauge I have. Any tire pressure between 30 and 35 psi is perfectly fine with my truck as long as all tires are the same. I usually fill them to 33 psi when needed.
 
I got a nice Moroso brand tire guage for Christmas. Super nice but its pretty big for keeping in my vehicles. (+ or - .5 psi I believe)

Most of the time, I use it at the house and try to half way calibrate my cheap pencil type guages.

I found most pencil type guages to be off anywhere from 2 to 5psi. But they do seem to be consistent. I don't mind them being a little off but they better be at least consistent or they go in the trash.
 
My friend and I just did a little experiment with this. I had a cheap pencil gauge, and got a new Accutire digital for Christmas. The two read 3 psi off from each other, the pencil reading lower. He has a dial gauge, 2 Accutire digital gauges, and 2 old pencil gauges. Using a single tire on his car, and taking repeated measurements of each twice before and after others, we got:

All three pencils: 31 psi
All three Accutire: 34.5 psi
Dial gauge: 34 psi

This led me to believe that the dial gauge and Accuture digital gauges are quite accurate, but the pencil gauges suck and read low. This could also explain why my tires have been wearing more in the center...they are 3 psi high and I already go 1-2 psi over the door placard! Based on this repeated consistency, I would recommend a dial gauge or an Accutire digital and stay away from all pencil gauges, especially the cheap junk available today.
 
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