from Russ W. Knize article. wrote:
While there are dozens of oil filter brands out there, there are only a few actual manufacturers. Most filters you see on the shelf are sold by companies that don't actually make oil filters. The exceptions are Baldwin/Hastings, Champ, Donaldson, Purolator, and Dana/WIX. Those are actual manufacturers and you can be fairly certain of what is inside the can.
A very good article to read and study is "Oil Filters Revealed" by Russ W. Knize.
http://minimopar.net/oilfilters/reference.html#purolatorMake your own conclusions; there are several above average good filters out there. It is not as obvious as one would think!!
Based on some of the comparisons I have read and studied on the web, I have been using the Purolator One for the past several years.
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