Hi, I’ve noticed a 0.3bar difference between the TPM reading on my dashboard and my analog pressure gauge found in my frunk with all the tools. My TPM sensors are brand new and I have no idea which one to trust so I would like to hear your thoughts.

 

Can't say your TPMS readings are 100 percent accurate. I could only say that analog gauges do drift over time. I've found handheld digital ones much more consistent.

 

I would invest in a better digital gauge so that you get a more accurate reading. I like my Longacre gauge.

 

My TPMS read 3-4psi low at all times vs. a handheld (both analog and digital) gauge. I've swapped out sensors and the same net result. I've just gotten used to it...

 

especially if you are tracking the car

 

Would not trust either of those sources. Buy a good Intercomp gauge, take care of it, and you will have accurate readings for life. https://www.intercompracing.com/digi...-35_36_37.html

 

Anyone have any experience with the JACO Elitepro gauge and is it a good option to consider along with this one?

 

What is the use case? if it's just for the street or even the track really, 0.3 +/- is not going to make a difference unless you're a very serious driver, which I will assume you are more recreational like the rest of us, haha.

Edit: infairness, .3 bar is 4 foot pound, so it would annoy me too in hindsight. Now I need to go and get a new pressure gauge to cross check. I sort of know by the feel of the tires if they are too soft / hard (I used to track a LOT). I do keep an eye on the digital pressures religiously but if they don't match my manual guage, I think that will get very annoying very quickly

I prefer analogue because the batteries don't run out

You will see a lot of these Longacre ones around the tracks https://www.bimmerworld.com/Tools/BM...IaAjuvEALw_wcB

 

I have been using Longacre tire gauges for a long time for Street & Track and have been happy with the products.