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a slow leak can do it, not noticed
Been a long time since I retired during 2013 with low tire wear since.
About a year later, that tire's tread was nearly gone and we discovered she had broken her suspension, as well.
The main function of nitrogen in race car tires is to eliminate the humidity (water) that is in air. This humidity can affect tire pressure when the tires get hot racing. Passenger car tires do not get this hot, and the minor variation in pressure is not significant.
I can follow 5-6 pounds of change over the course of one trip out. Hell in Idaho summers you tracked two with nitro and two with plain air. Sitting still I could track 3-4 pounds difference between direct and indirect sunlight.
While it makes a more noticeable immediate difference on the track, the difference it makes in daily driving is tire wear.
And since I’ve never had to pay extra for nitrogen in either state, it isn’t too expensive to me for that difference. :)
Long story short. One tire can be poorly cured or poorly compounded (like from another manufacturing batch DOT#) with the result -- poor wear.
complicated- 1) could be bad tire manufacture, 2) geometry of the right front end might be off, 3) "wearing out" isnt very specific in terms of what is worn out exactly, etc. etc
My wife drove over a Curb. Threw off the alignment (never told me), and she started destroying the tires.
I had the alignment done, things went back to normal. Of course, I had to replace 2 of the tires (Always replace in pairs)
seems it is based on the rotation rate of the tires
if one is off, it is low
just a FYI