K&P Engineering Oil Filter
Seasoned HDF Member
Joined: Sep 2009
Posts: 17,148
Likes: 6,170
From: SE Michigan
K&P's video on how to clean it doesnt mention an ultrasonic cleaner.
Road Captain
Joined: Dec 2009
Posts: 540
Likes: 3
From: Nooga, TN
I just want to clear up this flow thing on a normal engine with a bypass pressure regulator like the HD motor.
ANY oil filter will flow 7 to 10 times MORE flow than the engine oil galleries will allow. So all this my filter flows more is nothing but a misunderstood concept and marketing ploy. Most any filter will actually filter better than any stainless steel mesh filter. You need to read up on surface versus depth filtration. Most of the oil your pump puts out is actually just bypassed to the sump.
But, since for the change intervals we use, a filter is not even really necessary, use what ever makes you happy. You really just want to collect the big chunks if something comes apart.
You can go to sites like Bob is the oil guy and others to get past the many myths and old wives tails out there about Tribology. It is an actual science and is very sophisticated. Most of what you hear is myth and urban legend because Daddy did it this way.
Use ANY filter and ANY oil of the proper rating, change it at the recommended interval and your bike will run for hundreds of thousands of miles. Oils and filters today are ALL very good.
ANY oil filter will flow 7 to 10 times MORE flow than the engine oil galleries will allow. So all this my filter flows more is nothing but a misunderstood concept and marketing ploy. Most any filter will actually filter better than any stainless steel mesh filter. You need to read up on surface versus depth filtration. Most of the oil your pump puts out is actually just bypassed to the sump.
But, since for the change intervals we use, a filter is not even really necessary, use what ever makes you happy. You really just want to collect the big chunks if something comes apart.
You can go to sites like Bob is the oil guy and others to get past the many myths and old wives tails out there about Tribology. It is an actual science and is very sophisticated. Most of what you hear is myth and urban legend because Daddy did it this way.
Use ANY filter and ANY oil of the proper rating, change it at the recommended interval and your bike will run for hundreds of thousands of miles. Oils and filters today are ALL very good.
Tourer
Joined: Jul 2009
Posts: 490
Likes: 1
From: Omaha, NE
I am using the same KP filter I had on a 2009 SG and now on a 2014 RK. I am staying with this filter. An ultrasonic cleaner is not needed for cleaning. Follow the KP cleaning instructions. I cant say the KP filter runs the engine cooler. The idle and cruise oil pressure are higher with the KP. My main benefit is under 5 minutes I can pull the filter and know if anything is caught in the filter without having to hacksaw open a paper filter.
Last edited by NECaveman; Jun 28, 2015 at 09:19 PM. Reason: Grammar.
Outstanding HDF Member
Joined: Jan 2008
Posts: 3,328
Likes: 15
From: Pacific Northwest
Interesting. I'm curious as to how it paid for itself 3 times over. Please to explain.
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Outstanding HDF Member
Joined: Jan 2008
Posts: 3,328
Likes: 15
From: Pacific Northwest
I am using the same KP filter I had on a 2009 SG and now on a 2014 RK. I am staying with this filter. An ultrasonic cleaner is not needed for cleaning. Follow the KP cleaning I structions. I cant say the KP filter runs the engine cooler. The idle and cruise oil pressure are higher with the KP. My main benefit is under 5 minutes I can pull the filter and know if anything is caught in the filter without having to hacksaw open a paper filter.
I'm curious. What about any non-ferrous/non-magnetic pieces too small to be caught by the wire mesh filter media?
Also, anyone that 'hacksaws' a filter is never going to know what pieces came from the motor and what pieces came from the hacksaw. The filter should be cut open with a pair of tin snips.
