Hi,
This is all very confusing. To winterize the Car and prevent Flat-Spotting the Tires, you are supposed to inflate them to 56PSI. Agreed that you need to let sufficient Air out in Spring to reach normal Driving Pressures, but I don't understand how you ended up in the 40's with your pressure unless you didn't fully inflate them, or you have some leaks to account for...
Happy Motoring!... Jim'99
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