So I had this Leaky Tire that I took in to have fixed . Tire shop said it was from Corrosion around the Wheel so they ground it off and whatever else they do . Well today the low tire light came on and it had 20 psi , which is 15 psi under what the shop put in . It took 10 days to lose all that pressure . How common is it that the wheel is so badly corroded that it will always leak ?