Right."Deliberately Left Blank"
We've had years of tears in media, and nothing to show for it.
Right."Deliberately Left Blank"
But I'm not so invested that I would mistake the two since I am capable of making a rational discrimination. Believing that the torn media posted here is deliberate or accidental in every case requires just about the same level of (dis)belief as Sasquatch.I don't know that you actually hold that belief. Two pictures side by side, one of filter media and one of sasquatch. I assume one is more believable to you than the other although both are just pictures that someone claimed to have taken.
We've had years of tears in media, and nothing to show for it.
Which is statistically meaningless.
Millions of Purolator-made filters are sold and used every year in fleets which do oil analysis, yet they still buy them.
What I have not seen in the "torn media" campaign of the last few years is a post in which pictures of torn media was accompanied by an actual oil analysis showing bad results.
Nor have I seen a study of random samples of these filters that would provide the basis for forming a statistically meaningful conclusion as to the failure rate.
There is science and statistics, and then there is anecdotes and "I favor/disfavor X".
Wait, I thought you said we did have something to show from it? You said it was statistically meaningless.
Right.
We've had years of tears in media, and nothing to show for it.
What part of "pictures of tears of and by themselves tell us nothing important" is difficult?I'm really trying to follow you but its difficult
What part of "pictures of tears of and by themselves tell us nothing important" is difficult?
What part of "there is no evidence these tears:
- result in engine damage
- result in excessive engine wear
- happen at a statistically relevant frequency. "
perplexes you?
Be specific.
I've been using the Motorcraft FL820S in my 3v Mustang for years, under the assumption that OEM was about as good as it got. Other questions led me to these forums, but imagine my surprise seeing all the recent posts here about the FL820S tearing and just generally having a poor reputation.
I'm due for my OCI, and literally had another 820 in my cart. What's the consensus on a high quality replacement?
Bosch filters in the USA are made by the very same people in the very same factory as Purolator, Motorcraft, and so on.I have used the fl-820 since 2001, the first year I had a Ford DOHC V6, had a number of them since and never had an issue until a few years ago. Low oil pressure light started blinking on my Mercury Mariner a week or so after changing oil, went away after getting rpm up. Finally changed the filter to another 820 and the issue went away. Started using Bosch after that.
During years of posts of pictures of tears in Purolator-made filters those posts have never been accompanied by a study that:
quantifies the frequency with which tears occur;
provides a correlation between a tear in a filter with any type of engine wear or damage;
or been accompanied by a used oil analysis or other evidence that the tear had any material effect on the specific engine in question.
Now we are just left with numerous posts showing torn filters, like we were before this thread started. Those filters that have failed in their primary function since the media has failed.OK, I've been reading here about 20 ish years plus my industrial experience so with the bolded parts (my bolding- not your original) removed because this isn't limited to just them , I fully concur that no study I have seen or even heard of has ever addressed those issues in context of what a torn filter does ( or doesn't do)
Now what?
Now we are just left with numerous posts showing torn filters, like we were before this thread started. Those filters that have failed in their primary function since the media has failed.
Don't forget that we were promised that science and statistics showed that it was not significant, a statement that is yet unsupported with science and statistics just as you note.