billy ray did pass the time by typing:
> I used them regularly up till a few years ago. There are a couple reports
> that indicate a drop in filter area but if you change filters often (3k) it
> may not be significant.

Yea.. I blow the filters out every week and replace them at about 3k. Generally
pick up a case of filters every so often. It's cheaper than buying them one at a time.
rockauto.com has good prices and every so often I can get a deal with NAPA.
Down to my last four filters.

--
DougW