Tire gauges
 

What kind do you use? I like the pencil type because they don't take up much room and I leave one in every car. For more precise stuff, I use a racing type gauge with a hose and separate gauge face.

Now, how the heck do we know if our gauges are accurate?

Accutire digital is tested as the most accurate. I don’t have one. I have 2 Accutire analog dial gauges and a Joe Racer dial gauge. They all measured within a pound of each other when I tested them against each other. The pencil gauges I have that I tested were all over the place. Then I dropped one of the Accutires and it was off by 2 psi. That’s the problem with analog gauges, they’re delicate. If I was buying a new gauge today it would be a digital.

Great question!!! I just know from when I worked in the compressed gas industry that cheap dial gauges were not supposed to be accurate. Very curious as to informed responses. Continue.

I went hi-tech ... a Milwaukee 18V inflator/guage in the garage (I already had the batteries/charger) ... not cheap... worth it too :).

I've had mine a year or so ... it's consistent and I've calibrated it by comparison to "known" PSI in tires ... it's dead nuts accurate.

I've had really good luck with the "Accu-Gage 60 PSI Dial Tire Gauge (S60X)". I've got 2 or 3, and when comparing them, they all show the same pressure which also matches up with what the TPMS in the Boxster says and another gauge that I have.
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Because I already had some of the 12V Milwaukee tools, I got the 12V version of the inflator. It seems to work really well and consistently.

Just don’t drop it. The rubber cushions a lot of these dial gauges have are really helpful. If I ever bought another analog dial gauge, it would have a rubber “muff” around it.

They do sell a few versions with rubber bumpers.

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I have an Autel service tool to reset my TPMS.
Just have to put it against the valve and click. It holds all the pressures.

I just wait for my TPMS to toss a light on the dash. But seriously, I have a Milton tire inflator with a built in gauge. I've checked it with several other gauges and it seems pretty accurate.

The Ludight :D?

The RF on the Macan wuz showing -2 PSI yesterday...

I might have a sensor going bad ... I'll check it with the Milwaukee later ;)

Pencil type seems most reliable to me. Bonus it is so portable.

i have maybe 5 different gauges ranging from 4.99 cheapo to an 80$ longacre they all read pretty close to the same, at least close enough for me maybe a 2psi total range.

The built in gage on both my battery powered inflators are exactly the same as the longacre.

I think these things are basically commoditized now. Quality of the chuck/fitting is the main value of a good one IMHO

I bought digital gauges - Accutire brand - off the web as our trailer tires are 85/90 lb rated and the max rating of my analog gauge wouldn't cut it. Very pleased with Accutire accuracy as I compared it to the TPMS measure and they were +/- 1 lb.

I have the Accu-gage with rubber outer and one branded Porsche that was a gift. Both are within 1psi which is plenty good enough for my uses. I do keep a pencil gauge in every car and they are better than no gauge but might vary 3-5 psi from my dial gauges.

I do prefer analog because digital require a stupid button battery that always seems to die when I need it most. My micrometer is digital and I HATE that battery.

I have a good Milton tire chuck/gauge that goes on the air hose like an old gas station set-up, bought in the last couple of years. Did you know they are adjustable? Mine was off quite a bit from our known, *dead nuts* analog gauges, so I watched a YT video about calibrating it and got it nearly perfect after one stab at it. :cool:

I'm OCD in general and definitely about tire inflation. I also recently lost or misplaced my Accu-gage with the hose as pictured above so I ordered the small one, (also pictured above), and it's very accurate. I share space with a motorcycle track fanatic who has several high quality tire gauges and the way we check them is to try maybe a half a dozen on one tire and if 3 or 4 agree perfectly, those are the properly calibrated ones and the others are off. 3 or 4 good gauges could not all be off exactly the same...those are the *correct ones.* I tested my new AG next to a known perfect one and it was on the $$.

In my truck in the 911, I use a blue point tire pressure gauge. I’ve had them for at least 40 years. I’ve got several more, in my toolbox at home, that I used for the track, plus filling Tires at home.

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I have used the Joes Racing gauges for many years. I have two of them and love them. Don’t drop them though


I also have a Porsche Classic Tire Pressure Gauge with Leather Case. Bought it because it looks cool. Seems to work ok but much prefer the Joes Racing gauge for ease of use

I also use the Joes Racing gauge. To go along with don't drop them I would add don't let your brother use them. He got antifreeze in one of mine checking a tractor tire.

I have had this gauge for decades. There are other gauges 5 times the price but I don't need one for science or pro racing purposes. The cheap pencil ones can vary 5-6 pounds and are worthless. The tire store gives them away and I tested 4 of them and each one was different from my accu-gage (some by quite a lot).

Everything I read says that the smaller the pressure spread 0-60 versus 0-120 psi will give you a more accurate reading. As far as accuracy is concerned, each gauge may vary by a pound or two but if you use the same gauge you will know whether the pressure is going up or down (hey, temperature of the air and cold tires versus just driven will cause a variance of a few pounds).