I know the Bosch filters are mad by Champion, I am wondering how long these filters are good for? I got in on the free rebate from Auto Zone and have 2 of them. My vehicles are both Hyundai's, and the filter is the same for both. Is this filter good for 7500 miles? One car is on GC for 7500 miles, the other is on Valvoline DuraBlend for 5000 miles. Which would be better, or is does it matter?