My findings are on a Bosch; I only referred back to Fram because Bellavita mentioned using them. Hope that clears things up.
Bosch Premium 3323 oil filter is poor quality
- Thread starter slo town
- Start date
What videos were you referring to? I guess I didn't understand the offhand reference to another brand in this Bosch thread.
My mistake. Yes, let's keep the focus on Bosch.
Bosch filters are Purolator made are they not?
Oil Filter Parent Companies?
I’m going to be cutting all of these open to compare them, along with Purolator One and Boss filters. I’ll do a YouTube video as well. These are all specd for the GM LT1 motor that’s in my 1992 Corvette, along with many other GM motors. I believe Purolator, Bosch and Mobil 1 are all made by...
bobistheoilguy.com
They have been, at least the Bosch Premium US made. WS Workshop likely too, when US made. The coo for both is now Mexico. Afaik, Purolator US never had an oil filter manufacturing facility there. Otoh, Wix to the best of my knowledge did. So, it's possible M&H (which owns both brands) now make Bosch. At least that's my best guess. So afaik now, Bosch oil filters no longer made by Purolator US.
Good to know, I guess I'll stop blaming Purolater then.
Seems nobody in the production process monitors and takes care of the machinery that puts louvers in center tubes. And no QA monitoring the louver process. Who manages these factories? ... need some better management and quality control.
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