I got bored today with the Nascar race and decided to run a test. I have 4 pressure gauges. Two digital and two what ever you call the old fashion gauges. Measuring each tire with a different gauge I came up with four different readings. Not just a little difference, but the digitals were 95 # and 102# and the other ones were 85# and 100#. Problem is, I don't have a clue how much pressure I have in any given tire. Curses...I think the tire gremlins are at work. Sorry, tired of Edwards doing back flips.