PlayDate
Well-Known Member
Couldn't it just be that some filters are made better than others, but almost all are exceptable? In our previous business, we used mostly Cat, Fleetguard, Donaldson and Napa Gold, and a lot of them. Those are the ones that I would buy for normal shelf stock. Occasionally I bought boxes of filters at equipment auctions for pennies on the dollar if most of the filters in a particular lot were compatible with our machines. Over the years I'm sure I have run just about every well known kind at least once or twice. Never had any problems with any of them and the insoluble numbers were always in range on the oil reports.
TT, I run the LF9009 on my boat, found this DIY youtube video:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwi0_taSoIfgAhUGTawKHf3BAd4QwqsBMAB6BAgFEAQ&url=https://www.youtube.com/watch?v=DDWzXXYXX-k&usg=AOvVaw06Nk5ekU2D2FUUVwpNMP3W
Not sure what conclusions can be drawn from it, but the oil lab always states in their little blurb with the oil report that the filters are doing their job.
I'd bet there's a cat video out there somewhere.
It is probably a fair bet to say the retailers (Cat, Quicksilver, Fleetguard, NAPA etc.) actually specify the material and construction of their filters to the manufacturer. That would explain the metal gauge, filter material and design that is used.
Then you have companies like Fram who have great marketing, an innovative grip surface and specify a junk product on the inside.