On 3 of my tires, the penny just won't stand in the tread. The gap in the tread is too wide for the penny to stand. Does that matter?
In case of the 4th tire, the penny goes in to some degree. This is a new tire. I suppose this tells that the penny is good.
This weekend, I am planning to take it to a tire store, but I want to be armed with some knowledge, before going there. I drive about 13 - 15 K miles per year. This van was purchased on 31-Dec-2012 and the dealer told me it was a vehicle that was owned by car-rental company. The dealership said, they put brand new tires on it. I have had a few alignment issues in the beginning of 2014 and that's the reason one tire is newer than the others.
Do I need to replace the other 3 tires, where the gap between the treads is considerable?