Originally Posted By: Shannow
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When a transmission filter is changed...it is changed, not washed in a bucket of slops and put back in.
To the proponents of the analogy, please explain how it is relevant again ?
If you are washing "in a bucket of slops" It might have more to do with your method than the filter it self. Simply taking a minute with a can of aerosol brake/parts cleaner and spraying/back flushing through the clean side of the screen and out the dirty side of the SS mesh oil filter element is all that it takes to clean them. Not what I would call a bucket of slop or does it put "dirty stuff onto the clean side". Sometimes if some one doesn't like the idea of some thing they will intentionally or unintentionally find a way to make it fail.
The filters(SS mesh oil filters and most trans filters in the pan) are based off the same technology, doing similar duty filtering high volumes of oil with applicable pore sizes, media area and change/cleaning schedules respective to their construction, service intervals and environment. How is that not relevant?
Before you say the analogy is irrelevant altogether you have to also look at the similarities, not just the differences.
Your throw away screen type trans filter is often now days nothing more than a similar screen molded into a $2 plastic housing bolted/clipped to the trans often sold for
For a $60 - $100+ oil filter with a formed pleated screen and machined end caps for that screen to be mated to, access for cleaning and a machined housing for the assembly to be placed in, cleaning makes sense.
Yes, there are draw backs to the SS mesh filters. They may on first pass capture 100% of "fill in the blank" micron size and above. However IIRC from the tests I have seen at work on a multi-pass test a ~25u SS mesh filter filters down to ~5u. However the efficiency for the smaller micron sizes rates below that absolute rating drop off significantly and rapidly.
A paper filter may be nominal 99.9% at 20 microns(picking a average Purolator number) but that doesn't stop it from passing particles of material larger than 20u. It just does so at a lower rate. It could still pass a 30, 40.... 100u particle. However the paper filter might have the ability to capture a smaller particle at a higher rate than what the SS mesh counter part may.
One must keep in mind the absolute of the SS mesh filters and the nominal ratings of the traditional filters are not done on the same scale/test.
Take the 10 micron Harley Evo filter mentioned above. Again, 10u at what efficiency? and what is the largest particle it passes?
A hint, it's not 10u @ 100%.
......
When a transmission filter is changed...it is changed, not washed in a bucket of slops and put back in.
To the proponents of the analogy, please explain how it is relevant again ?
If you are washing "in a bucket of slops" It might have more to do with your method than the filter it self. Simply taking a minute with a can of aerosol brake/parts cleaner and spraying/back flushing through the clean side of the screen and out the dirty side of the SS mesh oil filter element is all that it takes to clean them. Not what I would call a bucket of slop or does it put "dirty stuff onto the clean side". Sometimes if some one doesn't like the idea of some thing they will intentionally or unintentionally find a way to make it fail.
The filters(SS mesh oil filters and most trans filters in the pan) are based off the same technology, doing similar duty filtering high volumes of oil with applicable pore sizes, media area and change/cleaning schedules respective to their construction, service intervals and environment. How is that not relevant?
Before you say the analogy is irrelevant altogether you have to also look at the similarities, not just the differences.
Your throw away screen type trans filter is often now days nothing more than a similar screen molded into a $2 plastic housing bolted/clipped to the trans often sold for
For a $60 - $100+ oil filter with a formed pleated screen and machined end caps for that screen to be mated to, access for cleaning and a machined housing for the assembly to be placed in, cleaning makes sense.
Yes, there are draw backs to the SS mesh filters. They may on first pass capture 100% of "fill in the blank" micron size and above. However IIRC from the tests I have seen at work on a multi-pass test a ~25u SS mesh filter filters down to ~5u. However the efficiency for the smaller micron sizes rates below that absolute rating drop off significantly and rapidly.
A paper filter may be nominal 99.9% at 20 microns(picking a average Purolator number) but that doesn't stop it from passing particles of material larger than 20u. It just does so at a lower rate. It could still pass a 30, 40.... 100u particle. However the paper filter might have the ability to capture a smaller particle at a higher rate than what the SS mesh counter part may.
One must keep in mind the absolute of the SS mesh filters and the nominal ratings of the traditional filters are not done on the same scale/test.
Take the 10 micron Harley Evo filter mentioned above. Again, 10u at what efficiency? and what is the largest particle it passes?
A hint, it's not 10u @ 100%.
