I'm getting my Boxster ready to store and increased the tire pressure to 58 psi (as recommended). I'm used a Shop Force household compressor (about $40).
After increasing the tire pressure I checked it with a hand-held tire gauge and it measured about 50 psi. It has a rotary gauge (Accu-gage) and cost $6.
So, the gauge on the compressor says 58 but the handheld says 50. I guess I don't trust either measurement.
Where can I get a gauge that I can trust?