http://s115.photobucket.com/user/charkin...rt=3&page=1
Small filter from a 99 Toyota Camry. Solid and thick media.
Small filter from a 99 Toyota Camry. Solid and thick media.
Cut Open - Toyota 90915 = yzzf2
- Thread starter JC1
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No end caps ?
Originally Posted By: ZeeOSix
Nope ... every pleat is glued together at the ends.
Interesting.
Nope ... every pleat is glued together at the ends.
Interesting.
Originally Posted By: Merkava_4
Originally Posted By: ZeeOSix
Nope ... every pleat is glued together at the ends.
Interesting.
If the pleats weren't glued like that on the ends, then dirty oil could go right down the ends and not be filtered. But hey, guess it wouldn't really matter because it would be just like having 4 big tears in the media.
Originally Posted By: ZeeOSix
Nope ... every pleat is glued together at the ends.
Interesting.
If the pleats weren't glued like that on the ends, then dirty oil could go right down the ends and not be filtered. But hey, guess it wouldn't really matter because it would be just like having 4 big tears in the media.
If, could. But isn't.
Originally Posted By: ZeeOSix
If the pleats weren't glued like that on the ends, then dirty oil could go right down the ends and not be filtered. But hey, guess it wouldn't really matter because it would be just like having 4 big tears in the media.
Originally Posted By: ZeeOSix
If the pleats weren't glued like that on the ends, then dirty oil could go right down the ends and not be filtered. But hey, guess it wouldn't really matter because it would be just like having 4 big tears in the media.
Originally Posted By: kschachn
If, could. But isn't.
Originally Posted By: ZeeOSix
If the pleats weren't glued like that on the ends, then dirty oil could go right down the ends and not be filtered. But hey, guess it wouldn't really matter because it would be just like having 4 big tears in the media.
After seeing how bad the efficiency of the Toyota filters are (50% @ 20 microns), I'm thinking some of the reason for that bad efficiency might be some leaking at the ends of the pleats. When you have to glue over a 100 pleat ends, the chances of having a bad seal or two could be possible.
If, could. But isn't.
Originally Posted By: ZeeOSix
If the pleats weren't glued like that on the ends, then dirty oil could go right down the ends and not be filtered. But hey, guess it wouldn't really matter because it would be just like having 4 big tears in the media.
After seeing how bad the efficiency of the Toyota filters are (50% @ 20 microns), I'm thinking some of the reason for that bad efficiency might be some leaking at the ends of the pleats. When you have to glue over a 100 pleat ends, the chances of having a bad seal or two could be possible.
Originally Posted By: JC1
http://s115.photobucket.com/user/charkin...rt=3&page=1
Small filter from a 99 Toyota Camry. Solid and thick media.
These Japanese OEM Densos perform well in real world tests. I bought a case of 90915-10003 filters which use the same design and media for my wife's Toyota.
The aftermarket Denso 150-1001 is a completely different filter with a conventional design made in Thailand.
http://s115.photobucket.com/user/charkin...rt=3&page=1
Small filter from a 99 Toyota Camry. Solid and thick media.
These Japanese OEM Densos perform well in real world tests. I bought a case of 90915-10003 filters which use the same design and media for my wife's Toyota.
The aftermarket Denso 150-1001 is a completely different filter with a conventional design made in Thailand.
Although as has already been discussed, it's not clear that the efficiency rating (at least for these filters) has any bearing on actual engine longevity. And you don't know that the 50% rating is due to leaking glue pleats, in fact that isn't shown at all.
Mind you I don't use OEM Toyota filters either, but I have no real reason for not doing so.
Originally Posted By: ZeeOSix
After seeing how bad the efficiency of the Toyota filters are (50% @ 20 microns), I'm thinking some of the reason for that bad efficiency might be some leaking at the ends of the pleats. When you have to glue over a 100 pleat ends, the chances of having a bad seal or two could be possible.
Mind you I don't use OEM Toyota filters either, but I have no real reason for not doing so.
Originally Posted By: ZeeOSix
After seeing how bad the efficiency of the Toyota filters are (50% @ 20 microns), I'm thinking some of the reason for that bad efficiency might be some leaking at the ends of the pleats. When you have to glue over a 100 pleat ends, the chances of having a bad seal or two could be possible.
Originally Posted By: kschachn
Although as has already been discussed, it's not clear that the efficiency rating (at least for these filters) has any bearing on actual engine longevity. And you don't know that the 50% rating is due to leaking glue pleats, in fact that isn't shown at all.
Mind you I don't use OEM Toyota filters either, but I have no real reason for not doing so.
Originally Posted By: ZeeOSix
After seeing how bad the efficiency of the Toyota filters are (50% @ 20 microns), I'm thinking some of the reason for that bad efficiency might be some leaking at the ends of the pleats. When you have to glue over a 100 pleat ends, the chances of having a bad seal or two could be possible.
Whatever the reason is for the low filtering efficiency of 50% @ 20 microns, I chose not to use them anymore. My choice, I don't care if anyone else uses them, or if they even use an oil filter at all.
Although as has already been discussed, it's not clear that the efficiency rating (at least for these filters) has any bearing on actual engine longevity. And you don't know that the 50% rating is due to leaking glue pleats, in fact that isn't shown at all.
Mind you I don't use OEM Toyota filters either, but I have no real reason for not doing so.
Originally Posted By: ZeeOSix
After seeing how bad the efficiency of the Toyota filters are (50% @ 20 microns), I'm thinking some of the reason for that bad efficiency might be some leaking at the ends of the pleats. When you have to glue over a 100 pleat ends, the chances of having a bad seal or two could be possible.
Whatever the reason is for the low filtering efficiency of 50% @ 20 microns, I chose not to use them anymore. My choice, I don't care if anyone else uses them, or if they even use an oil filter at all.
Originally Posted By: Wilhelm_D
These Japanese OEM Densos perform well in real world tests.
You have a link to these tests - and what's the definition of a "real world test"? I've never even seen a published efficiency rating for the factory "foamy" looking Toyota filters.
These Japanese OEM Densos perform well in real world tests.
You have a link to these tests - and what's the definition of a "real world test"? I've never even seen a published efficiency rating for the factory "foamy" looking Toyota filters.
Me neither, but then Denso isn't exactly the most forthcoming about their oil filters.
All you can say about them is that they are different, and the metal can is built like a tank. I used to buy them on the grey market but stopped when I came to my senses.
Originally Posted By: ZeeOSix
I've never even seen a published efficiency rating for the factory "foamy" looking Toyota filters.
All you can say about them is that they are different, and the metal can is built like a tank. I used to buy them on the grey market but stopped when I came to my senses.
Originally Posted By: ZeeOSix
I've never even seen a published efficiency rating for the factory "foamy" looking Toyota filters.
Originally Posted By: JC1
http://s115.photobucket.com/user/charkin...rt=3&page=1
Small filter from a 99 Toyota Camry. Solid and thick media.
Look like a the better Honda A01 Filtech filters.
at least the filter element part.
http://s115.photobucket.com/user/charkin...rt=3&page=1
Small filter from a 99 Toyota Camry. Solid and thick media.
Look like a the better Honda A01 Filtech filters.
at least the filter element part.
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