It seems some filter manufacturers add a silicone ADBV to an identical filter and charge much more and extend the mileage usage recommendation. Supertech's $3.38 10K filter appears to be identical to their $5.90 20K filter except for the addition of the silicone ADBV....STP's 5K filter seems identical to their 10K filter except for the addition of the silicone ADBV.
If you are changing your oil every 4 months/7.5K does the silicone ADBV really matter when everything else about the filter is equal?
If you are changing your oil every 4 months/7.5K does the silicone ADBV really matter when everything else about the filter is equal?