I used 2 different gauges, one gave about 43psi and the other about 31psi.
I tried the front tyre and also very different readings.
The spare tire though both gave the same.
One gauge is digital (https://auto.falcar.com/product.aspx?pid=1848103#.XZmapkYzbDc)
The other is a compressor with a gauge, not digital (https://auto.falcar.com/product.aspx?pid=1841578#.XZme5EYzbDc)
What’s going on?