Edgy01

I'm a true novice when it comes to a tire pressure gauge. I used to just use the tire gages that came with every new 911 (Porsche used to really do that!) but wonder what the pros and cons are of each type. How does one calibrate one? Can they be, or do you have to mentally apply a correction factor each time?

alexb76

I feel the same way... how do you know which is more accurate/calibrate?

I bought the Porsche gauge from suncoast, it works *OK* but it's of fairly poor quality and most likely made in China! It is off around 2-3 PSI from my 997.1 TPMS and I have NO CLUE which one is correct.

I probably get one of the other gauges recommended here, as Porsche has totally disappointed with the supplier on their *branded* gauge...

Edgy01

Years ago Porsche supplied a VDO labelled pressure gauge to all new car buyers. They seemed to be alright. But have no idea how one rates next to any other.

stevepow

I have a digital Accutire, one on my pump, a Porsche one, and the TPMS. They all agree within less than a pound. Rather than calibration, I'm going for reasonable concensus.

Serious tracking might require more accuracy, but I think for most, these are fine. The Accutire shows more resolution easier (digital readout), so I get close with the pump and then dial it in with the Accutire, then check the TPMS. Plenty good enough for street driving.

No HTwo O

Damon, how about a "Group Buy" for your Rennlist faithful?

At Law

You guys are really into tire gauges.

I believe I am using the one that I found in my garage eight years ago.

Ucube

I'm still using my now 8 year-old Accutire digital gauge. I was starting to have doubts about its accuracy after so long, but then I tested it against the TPMS on my new MDX and it read identically.

KeninBlaine

The TPMS on my Targa consistently registered about 3 psi lower than my digital gauge.

I find it kind of funny that there have been numerous discussions over the years about the best tire pressures to run for street and track etc., and yet, it appears that everyone accepts that there may be calibration issues with gauges.

ADias

The analog Accu-gauges are beautiful in their brass cases et al but they drift with time and are rarely accurate. I have 3 digital Accutire gauges and they all read the same.

George from MD

Go to Racer's Wholesale and get a longacre. I had the Griots. It's cheaply made and kept breaking. While they replaced it twice I finally threw it away the third time. I liked the design but it was just built like sh*t- cheap plastic, stamped metal. Digital or not is up to you but a simple analog one won't need any batteries.

ADias

But how accurate is it? Will it read an accurate 33PSI today, six months from now, 2 years hence?

utkinpol

i use this one for 2 seasons now and it is pretty perfect IMHO.
http://www.suncoastparts.com/product//PNA36110002.html

George from MD

Longacre gauges are very accurate and hold that accuracy for years. I have a five year old one that's perfect. They're built like tanks- you can practically drive over them (not really but trying to make a point). If it were me I would get the simple analog Longacre and never look back. Unless you're tracking the car and making frequent adjustments (for which I would get- and have- the Longacre combi filler and digital gauge) that's all you'll ever need.

jw1977

Does anyone know if the cheaper longacre digital gauge is backlit?

Michael T

I have Drager that we gave our Dad soon after he bought a new BMW 2002 in 1974. I was 14 when he got it and I now have it. It is still as accurate as ever.