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I know the Brand Ranks videos are not endorsed by the content police here, but, this individual test they performed seemed reasonable and well executed and it illustrates that while Tough Guard efficiency looks to be virtually equal to the Ultra, Ti and Endurance - its ability to clean oil isn’t...

Regarding Fram’s new ISO 4548-12 claim of “98% at 20 to 30 microns” I actually think this makes more sense than a single claimed micron efficiency. We know not all filters will test to the exact same ISO 4548-12 efficiency - that’s just not the way it works. Even if different filters are built...

Fwiw - all the filters I’ve cut open under the Mann-Hummel brands have looked really good. Bosch, Mobil 1, Purolator, Wix - every cut open has looked good. And, because we apparently now know that FB filter media is at best 98% at 20 to 30 microns, imho choosing a well constructed and...

I almost didn’t cut these open because I felt super confident that they would be totally identical. Do you think this quality control problem with the only Super Tech oil filter I’ve ever cut open is a fluke? If I kept opening up AC Delco filters would I find this too? Or … is there a...

The Fram back then is different from the Fram of today - it’s not the same company. What we do know about today’s Fram is that we cannot believe anything that’s currently in print - none of it has been updated to align with current materials and construction.

I’m up for the expense of buying a handful of filters and cutting them open, and spending a bunch of time trying to get specifics / details out of manufacturers … but my wife might notice the second mortgage needed for Ascent testing 😉

Instead of paying $13 for a Fram Titanium or Endurance I’ll opt for the $4.28 OEM filter with the exact same efficiency:

I am bummed and disappointed, but, I can't say that I am surprised. Read this conversation all the way to the end. I really pressed this technical support person. I asked them to double confirm 98% at 20-30 microns per ISO 4548-12. My guess is that the filters that do still have the metal...

Is your experience with Mobil 1 LS or another premixed?

This topic keeps popping up, I didn’t think it was advisable to add the GM Limited Slip Additive to a fluid already formulated for limited slip differentials - but I emailed Mobil 1 Technical Support to 100% confirm: Their reply:

Update: The Fram Tech Chassity from the chat above followed up with an email and offered to send me another FS3506 filter. I said "Sure!" and I was excited to see what would arrive! Well the package arrived today with two new FS3506 filters inside ... one wire backed and one not! So I wrote back...

Loads of people have been messaging me wanting to know details! @dnewton3 feel free to paste this info to into the original post. Backstory: I inquired with the BITOG community about best practices for long-term oil filter storage and the best two recommendations seemed like desiccant...

Precisely!

I’m pretty sure this is over the top, but I combined the BITOG long storage best-practices recommendations!

You're a bad (fantastic) influence @bullwinkle !! I just ordered https://a.co/d/6JQ9zgI

So I did it. I drove around and found wire backed Fram Titanium filters for my Corvettes. Then, like a total sicko, I unboxed them, sealed them up in plastic bags, put them back in boxes and neatly taped the boxes closed. Also, I bought more filters and cut them open: The Endurance is...

The Endurance does seem like a good option, BUT it also seems to be the exact same filter as the Royal Purple - yet the test results for these supposedly identical filters were very different:

I made a video yesterday comparing Purolator ONE with Fram Titanium, I decided to go with the Fram. So today I went to Advance Auto Parts - there were three FS3506 filters on the selves … and all three were different designs. This is super frustrating because you never know what you’re getting...

To further complicate things … I went just now to pick up another FRAM FS3506 and … it’s louvered!