Recent content by Hatsuwr

Thanks! Wish I had more time to look into them right now, but if that 99% @ 25 micron rating is correct then it looks like these will be my new go-to. I upgraded my central vacuum motor so I won't be able to do direct pressure differential test comparisons with the Frams I tested a while back...

I haven't heard about the new CQ filters, could you tell a bit more about them?

I go with Carquest Premium these days.

Yea but the issue covers several brands. I might get around to emailing some individually at some point. Maybe I'll just be lazy and forward the original email to all of them. But honestly if a brand can't be bothered to make sure their manufacturer doesn't make a filter that's a better pipe...

I only tried getting in touch with [email protected]. I emailed twice over a year ago now. I think they manufacture at least some of Amsoil's filters. No response about the leak paths, my pictures showing Fram's media shedding issues, or my questions about the efficiencies of...

That channel hurts to watch... He puts so much time and effort into his tests, but there seems to always be serious (and easily avoided) issues that make it really hard to draw useful conclusions from them. I really appreciate his dedication, but so much could be improved just by asking for...

There is a configuration called a Halbach array that focuses the magnetic field on just one side of a set of magnets - I'm fairly sure the FilterMags use this. I wrote a bit about the topic here: https://bobistheoilguy.com/forums/threads/regarding-magnets-on-oil-filters.388954/ I designed a...

No, shop vacs cant generate the pressure differential needed to open the bypass on most filters.

Such a boring filter! Have you come across even a single defect in any of the Carquest Premiums that you've cut open?

Yea there are a lot of pictures out there. Try searching with the term Filtermag, since those are relatively popular. Here are a couple of the first results I found: https://bobistheoilguy.com/forums/threads/filtermag-on-toyota-90915-10004-filter-pics.92836/ What's missing is an assessment of...

It's their Heavy Duty line, manufactured by Baldwin. I just got off the phone with Baldwin and they corrected my assumptions regarding what they mean by nominal and absolute ratings. It's not 50% and 98.7% like I though, but actually 52% and 98%. They also confirmed that at least the 85516HD...

Someone needs to make a family tree for all of these brands and manufacturers one of these days lol. Could you share the brands you know are manufactured by PGI? Also, I called CQ/AAP and they confirmed the 95.1% @ 20 µm and 99.5% @ 20 µm for the Standard and Premium filters and agreed that the...

One thing I'm curious about is if there is a difference in media based on COO rather than just model line. I think a big part of that is that there's so much less going on with a cartridge, it's mostly just a matter of efficiency. With Fram for example, I stopped using them because of leaky...

The Carquest Premium seem to be one of the best filter choices these days, so I did a pretty in depth look at Carquest's various offerings and though I'd share. Efficiency has been a common question brought up here, and I did my best to organize the contradictory information that is available...

Two things - newly introduced contaminants take longer to be filtered out, and contaminants previously blocked by the filter can become dislodged and then bypass the media entirely, and then need to be filtered again. All together it just means higher levels of particulate contamination in your...