38PSI cold is a lot. I fill my tires up when they're warm so I usually fill up to around 37 front and 39 rear. My issue is usually still with the outsides wearing faster though.
35psi is the new 32psi, my preference is 38 front and 40 rear.
I find the rears wear more on the outer edges rather than in the middle.
Rain and snow months, I like to lower the pressures to 32 psi.
Not all gauges are accurate. Your 34psi gauge reading may be read as 37psi on another gauge.
My '03 OM recommends 36psi front and back, same as the recommended psi on the door.
My rear tires wore heavily on the inner tread due to weak rear coil springs. / \
Buffalo4
I find snows are more sensitive to pressure than all-seasons. I ran MXV4s at 35 with no abnormal wear, but 35 on Blizzaks wore the center noticably. Dropped to 33 and the wear evened out.
Same story on my other car (55 series tires), I can run the all-seasons up at 36-37 and hit all wear bars across the tread in the same week, but the snows want 32.000 or they wear in the center.
I get heavy shoulder wear on the fronts (outside edge). Gets worse if I run too high of pressure. Checked alignment several times at several shops. All say 'abnormal tire wear but perfect alignment'.
Yeah, you got your money’s worth. I had a set of Michelins on my car trailer, they were probably 8 to 9 years old, and hauling a vehicle down the interstate, one separated. Couldn’t really tell when looking at it, but when it was pulled off, wow, you definitely could see it then.
I don’t buy old tires and will always look at the manufacture date before purchasing new ones.