A few minutes ago I sent the following letter to Purolator.I Do Not use FRAM and have not for quite some time.I am afraid of how they are made,just to cheap.Anywayhere goes.
I am writing to ask why your oil filters use metal endcaps instead of cardboard like FRAM does.FRAM has a very high rating on their filters.The cardboard caps should be easier to glue and should make a stronger bond to the filter element and endcaps while making it almost impossible for the internals to leak.Would not it be harder to glue the element to metal than to cardboard? This also would make your filters cheaper to produce so then maybe your filter would be cheaper and more people would by them.Also with the better gluing they wont have to worry about the filter leaking.If FRAM can have filters that are designed and built this way,then why cant Purolator? A good seal in the filter means that no dirty oil can bypass the element,this keeps the oil cleaner.With metal,wouldn't it be easier to have a bad seal and cause leaks? FRAM oil filters also use glass in their element to trap more dirt than regular paper.I have used Purolators before but with FRAM having a higher rating why should I use Purolator? The FRAMS are almost impossible to leak,can you say that about the Purolators?
I am writing to ask why your oil filters use metal endcaps instead of cardboard like FRAM does.FRAM has a very high rating on their filters.The cardboard caps should be easier to glue and should make a stronger bond to the filter element and endcaps while making it almost impossible for the internals to leak.Would not it be harder to glue the element to metal than to cardboard? This also would make your filters cheaper to produce so then maybe your filter would be cheaper and more people would by them.Also with the better gluing they wont have to worry about the filter leaking.If FRAM can have filters that are designed and built this way,then why cant Purolator? A good seal in the filter means that no dirty oil can bypass the element,this keeps the oil cleaner.With metal,wouldn't it be easier to have a bad seal and cause leaks? FRAM oil filters also use glass in their element to trap more dirt than regular paper.I have used Purolators before but with FRAM having a higher rating why should I use Purolator? The FRAMS are almost impossible to leak,can you say that about the Purolators?