Steve this is a prime example of MISLEADING marketing.....
What Steve links to is the Ultimate BS marketing hype that erroneously places one filter manufacturer over another .... what is claimed in the specific link is 'snake-oil' meant to slant towards only one certain manufacturer. This linked website is an example of pure and simple misleading information and is meant to slant and trap the unaware. The 'standard' for testing of 'oil filters' on this planet is what's known as the "OSU F2 test stand" (OSU = Okla State Univ.) ... and is correlated via a standardized ASTM method. You MUST be aware that filter manufacturers use a 'special jargon' that unless you really know what is offered may be quite harmful. What Im stating is that filter manufacturers 'rate' their product but leave out a lot of information and unless you know 'filter-speak' you can be VERY easily be mislead. In 'filter speak' a 5uM filter from one manufacture is usually NOT equal to a 5uM filter from another manufacturer -- the 'ratings' are entirely arbitrarily applied by the various 'packagers' ... meaning a filter manufacturer using cellulosic filter media can put ANY rating they feel like on a product and still be correct ???!!!! Also the term 'micron' has been obsolete for about 25 years, so when I see the term 'micron' I wince and then expect BS to follow ... the correct term for the past 25 years has been 'micrometer'. Cellulosic filter media cannot be an 'absolute' rated filter ... it can only approach its rating by a weight/mass reduction of influent particle to effluent particle to a PERCENT RETENTION efficiency (in filter-speak called a beta-efficiency ratio). For example, a cellulosic filter rated at 10µM, can by the F2 definition occasionally pass a particle the size of a BASKETBALL and still be 'rated' at 10µM. What the manufacturer/packager is actually telling you is an arbitraty *****NOMINAL****** rating at such and such value and if the manufacturer or marketeer doesnt explain the additional value of 'nominal' -- you have absolutely NO way of telling what you are getting. For example the SAME filter material may have 90% wt. reduction at 1µM, a 95% wt. reduction at 5µM, a 97% wt. reduction at 10µM ... and manufacture A will call it a 1µM, B a 5µM and C a 10µM !!!!!!!!!! and this is JARGON thats only known to 'insiders' leaving the unwashed and unenlightened 'consumer' to think whatever they want. The exclusive use of "OEM" filters is costly simply and solely by 'margins', doesnt correlate to the truth, in most cases is the SAME EXACT filter material being used by just about everyone else (except the shysters) in the industry. ...... and what is on that website is PURE UNSUBSTANTIATED CLAIMS that are used by slick 'marketeers' to trap the unwary. So, does the person who authored that site have any 'connection' to the brand recommended? .... I'll bet the FARM he does as when I, as one deeply involved in filtration engineering for well over 30 years, sees such unsupported and unsubstantiated blather .... I can only think of 'snake oil salesmen. I'll stand on the statements in my previous post. ;-)
What Steve links to is the Ultimate BS marketing hype that erroneously places one filter manufacturer over another .... what is claimed in the specific link is 'snake-oil' meant to slant towards only one certain manufacturer. This linked website is an example of pure and simple misleading information and is meant to slant and trap the unaware. The 'standard' for testing of 'oil filters' on this planet is what's known as the "OSU F2 test stand" (OSU = Okla State Univ.) ... and is correlated via a standardized ASTM method. You MUST be aware that filter manufacturers use a 'special jargon' that unless you really know what is offered may be quite harmful. What Im stating is that filter manufacturers 'rate' their product but leave out a lot of information and unless you know 'filter-speak' you can be VERY easily be mislead. In 'filter speak' a 5uM filter from one manufacture is usually NOT equal to a 5uM filter from another manufacturer -- the 'ratings' are entirely arbitrarily applied by the various 'packagers' ... meaning a filter manufacturer using cellulosic filter media can put ANY rating they feel like on a product and still be correct ???!!!! Also the term 'micron' has been obsolete for about 25 years, so when I see the term 'micron' I wince and then expect BS to follow ... the correct term for the past 25 years has been 'micrometer'. Cellulosic filter media cannot be an 'absolute' rated filter ... it can only approach its rating by a weight/mass reduction of influent particle to effluent particle to a PERCENT RETENTION efficiency (in filter-speak called a beta-efficiency ratio). For example, a cellulosic filter rated at 10µM, can by the F2 definition occasionally pass a particle the size of a BASKETBALL and still be 'rated' at 10µM. What the manufacturer/packager is actually telling you is an arbitraty *****NOMINAL****** rating at such and such value and if the manufacturer or marketeer doesnt explain the additional value of 'nominal' -- you have absolutely NO way of telling what you are getting. For example the SAME filter material may have 90% wt. reduction at 1µM, a 95% wt. reduction at 5µM, a 97% wt. reduction at 10µM ... and manufacture A will call it a 1µM, B a 5µM and C a 10µM !!!!!!!!!! and this is JARGON thats only known to 'insiders' leaving the unwashed and unenlightened 'consumer' to think whatever they want. The exclusive use of "OEM" filters is costly simply and solely by 'margins', doesnt correlate to the truth, in most cases is the SAME EXACT filter material being used by just about everyone else (except the shysters) in the industry. ...... and what is on that website is PURE UNSUBSTANTIATED CLAIMS that are used by slick 'marketeers' to trap the unwary. So, does the person who authored that site have any 'connection' to the brand recommended? .... I'll bet the FARM he does as when I, as one deeply involved in filtration engineering for well over 30 years, sees such unsupported and unsubstantiated blather .... I can only think of 'snake oil salesmen. I'll stand on the statements in my previous post. ;-)