My son sent me this link http://www.kandpengineering.com/# anybody know anything about this oil filter? Pretty expensive. Just wonder if it is any better than a Amsoil, K&N, oil the HD filter.

 

I have one on my bike. Don't know if it's doing everything it's supposed to or not. I wanted it for the looks, cooling, and the magnet so that I could check for metal filings each oil change.
The flow rate is supposed to be better than other filters.

 

Harley filters say there good down to 5 microns. This company thinks 35 microns is good. I'll stick with Harleys filter, they may not get every one but at least it will try to.,,,

 

HD piston cooling jets are very small. You get two little 35 micron chunks going through at the same time will plug them up maybe.

 

MICRON LEVELS NOT GREAT FOR COMPARISON

If you do any research on your own, you'll find that most manufacturers no longer use micron levels to rate their filters. This is a result of some manufacturers' shady representation of their filters using micron ratings. You see, some filter manufacturers would indicate that their filters would remove x micron particles and leave it at that ("x" being whatever arbitrary number they chose to print). Of course, consumers would take this to mean that all particles larger than this micron level would be removed, which is not necessarily the case.

The truth is that chicken wire will remove 5 micron particles. It will even remove 1 micron particles. BUT, it will not do so with very good efficiency. The key is, how efficient is the filter at removing x micron particles. If you don't know how efficient it is at a certain level, the micron rating means nothing.

So, most companies have gotten away from micron ratings (to avoid the confusion) and have gone to an overall efficiency rating. In other words, an industry standard test is used in which oil is contaminated with a certain number of particles of varying micron sizes. At the end of the test, there is a measurement taken to determine the total percentage of ALL of these particles that were removed by the filter. That percentage is then stated as the overall filtration efficiency of the filter.

Some companies use a single pass test, others use a multiple pass test. Both are perfectly valid and will give you an excellent way of determining how well a filter will do its job, but you should not try to compare results from a single pass test to results of a multiple pass test. You'd be comparing apples and oranges. In either case, high efficiency filters will rank in the low to mid 90's for filtration efficiency. Off-the- shelf filters will rank in the mid 70's to mid 80's for filtration efficiency.

IF MICRON LEVELS ARE TO BE USED

Nevertheless, you may still want to compare filters using micron ratings. If this is the case, the following is a good rule of thumb. A filter is considered nominally efficient at a certain micron level if it can remove 50 percent of particles that size. In other words, a filter that will consistently remove 50% of particles 20 microns or larger is nominally efficient at 20 microns.

A filter is considered to achieve absolute filtration efficiency at a certain micron level if it can remove 98.7% of particles that size. So, if a filter can remove 98.7% of particles 20 microns or larger, it achieves absolute efficiency at that micron level.

Most off-the-shelf filters are based upon a cellulose fiber filtration media. Most of these filters are, at best, nominally efficient at 15 to 20 microns. They won't generally achieve absolute efficiency until particle sizes reach 30 microns or higher.

High efficiency oil filters have filtration media made of a combination of at least two of the following: glass, synthetic fibers and cellulose fibers. Those that use all three are generally the best in terms of filtration. Those that use only two will fall somewhere in between. The best of these high efficiency filters will achieve absolute efficiency down to about 10 microns and will be nominally efficient down to 5 microns or so.

 

If YOU do your research you'll find that Harley recommends a 5 micron filter for their twin can motors. Thats a spec their engineers feel is what is needed in their motors. Its not hard to find. That being said I don't believe the filters they sell will catch every single 5 micron particle, but more then a 35 micron filter will. People should use whats called for not whats cheapest or on sale. Just because it will screw on the filter mount doesn't mean it belongs there.,,

 

35 micron filtration and no ADBV? Not on my bike.