Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
- - - - -

Radio Shack tire guage


  • Please log in to reply
3 replies to this topic

#1 Zack

Zack

    USMB Regular

  • Members
  • PipPipPip
  • 34 posts

Posted 15 June 2005 - 12:56 PM

Anyone have any experience with the inexpensive (about $15) digital tire guages that Radio Shack sells? I've got one which i purchased several years ago, and it has always seemed reliable -- it gives completely consistent readings when repeatedly checking the pressure in one tire.

However, I just bought new tires, and the guage attached attached to the air pressure hose at the tire place gave much lower readings -- the tire people inflated the tires to a claimed 32 psi (i checked with their air hose, and got readings which varied between 34-36 psi), while my Radio Shack guage showed 38 psi on the same tire!

I'm suspicious of the guage on the air pressure hose at the tire place because of the inconsistent readings - a 2 psi variation when repeatedly checking the same tire - but I'm surprised how much higher the readings were on my Radio Shack guage. And you'd think that a place that sells tires as its sole business would use an accurate guage!

Zack
'90 Legacy wagon AWD auto 158,000 miles

#2 avk

avk

    My Outback is bigger than yours

  • Members
  • 959 posts
  • Somerset County, NJ

Posted 15 June 2005 - 01:23 PM

I've had their cheapest gauge for 3 years or so. It's self-calibrating (against atmospheric pressure) and has a stated accuracy of 0.5 psi. I'd trust it more than the gauge on the hose. I believe all digital gauges use the same circuitry. But one thing I don't know is what happens when the battery ages, although the gauge should indicate when it's low. Maybe I should replace the battery just to see if there'll be any difference in readings.

#3 Sweet82

Sweet82

    Elite Master of the Subaru

  • Members
  • 3,266 posts
  • Salt Lake City

Posted 15 June 2005 - 01:38 PM

I have one too,

I have always found it to be accurate. :confused:

#4 Scottbaru

Scottbaru

    Eat, Live, Breath Subaru

  • Members
  • 312 posts
  • Holland

Posted 15 June 2005 - 08:54 PM

I think the digitals rely on the changing resistance between two thin sheets of metal, when one is bent by air pressure. Not much to these, not much to go wrong, pretty reliable until the battery is dead. Don't forget tire pressure goes up pretty quickly with heat, easily 5-lb higher from normal driving. You should go with the tire pressure recommended on the car (not on the tire) and check it cold.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users