Holes... I know how we love to dissect filters here. (Literally) Seeing how there's a thread on louvers and all.
I've noticed "most" holes in the base plates of filters are round. They differ in size and quantity. There are some oval and teardrop (FRAM Titanium) for example.
I just wonder if there's a reason for such different manufacturing? Flow control? Does anyone really believe the "teardop" marketing from FRAM?
My only concern would be "restriction". I've always been a WIX user but just installed my first FRAM filter the other day. (XG3387A) You 20 micron guys won me over.
I noticed the FRAM holes to be much smaller in diameter than the WIX filters. (At least for this model.) The Supertech has 13-holes! Smaller...but 13!
Just an observation on filter holes... Not sure if it means anything...
I've noticed "most" holes in the base plates of filters are round. They differ in size and quantity. There are some oval and teardrop (FRAM Titanium) for example.
I just wonder if there's a reason for such different manufacturing? Flow control? Does anyone really believe the "teardop" marketing from FRAM?
My only concern would be "restriction". I've always been a WIX user but just installed my first FRAM filter the other day. (XG3387A) You 20 micron guys won me over.
I noticed the FRAM holes to be much smaller in diameter than the WIX filters. (At least for this model.) The Supertech has 13-holes! Smaller...but 13!
Just an observation on filter holes... Not sure if it means anything...
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