Tire pressure gauge

[Rusty PW]

The tires parked in the sun will always read higher than the tires parked in the shade.

When I was still working at the power plant. We used to send gauges out to be calibrated by a 3rd party. Guys used to send their own torque wrenches, gauges and anything else. I sent my air pressure gauges and torque wrenches out too. On the Grand Cherokee with TPMS, there is a difference of 2psi. My JTRD is about .5 psi difference with the TPMS.

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[Trollboogie]

Thanks

Mine reads the same as the TPMS. It doesn't clamp to the stem, but it is very easy to get a reading without leaking air. It also has holds the reading until you push the button on the side. You can also use the button to let some air out if you over fill.

 

[OM Jeep]

My TPMS reads 37psi early in the morning after a cool night. I want my real PSI on my 37s to be 35. Should I keep as-is?

 

[Rusty PW]

So when I want my tire pressure to be 35 psi, do I trust my TPMS or a tire gauge, if they read different?

Try a couple of different gauges to see which ones read close to each other and the TPMS.

 

[Renegade]

Actually I may have misspoke.
I have this one according to Amazon.

JACO FlowPro Tire Inflator with Pressure Gauge - 100 PSI https://a.co/d/gKpzEWB

I have the digital Jaco. Jaco inflators have a lifetime warranty.

 

[ShadowsPapa]

The two best gauges I've ever had are:
An analog pressure gauge from an IH dealership in the 1980s. It's extremely accurate to this day. I've used it on tractor tires, truck tires, car tires, for decades. I always clean, dry it and put it back in the case when done.
It usually reads right along with the TPMS numbers.
The other is a digital gauge I got from the makers of SLIME. It's proven to be pretty accurate, usually within a pound of the TPMS.
When I check my rear spring air bags, both read the same even down to 5 or 6 pounds, a point where others are generally not accurate.

 

[dcmdon]

I mean it's nice.
Maybe I didn't realize that it's revolutionary.

If you haven't wrestled with leaky finicky chucks then it would just seem to work, and wouldn't seem any different.

But most gauges in particular require you to press it against the valve perfectly square or air leaks out. And if you are trying to bleed off a few pounds you need to hold it perfect for several seconds.

 

[wchevron]

Ordered a Jaco digital gauge. In case anyone is planning on ordering one off Amazon, they gave me a 10% off coupon in the box. Code JACO5678

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