Ok guys I was kidding about trusting the TPMS! I use a digital gauge that I bought on line. Much easier to read and I don’t have to guess how many hashes are between the numbers on a sliding gauge. However some digital ones are off. But if you’re within a couple psi I consider it correct. And how does one know which gauge is the correct one. Sure you can take it to a tire shop and use their gauge, but how do we know that one is accurate!
As far as TPMS systems......some are off by 5 psi! Both factory and aftermarket, so we can’t really trust them either!