An open discussion about oil filters.

[trmn8r]

uuuhhh yea thats what I said!.... ok not really but now I said it, see go look. I meant 8 -10 ... no really I did! 80-10 wouldn't even make sense now would it

[TXCHOP]

How bout the new H-D definitive (catridge) filtration system. Has anyone used or examined one.. My local dealer has no even sold one yet to comment.

Or was this discussed and i missed it????

It is still a 5 micron system,so what the point. The only benefit i see in the sytem is ease of changing and less mess....the replacements are still 12.95

[LittleBear]

Originally Posted by Jeffytune

I got this strait from a trusted friend who is a Tech at a dealership, and got that info from Harley technical services in Milwaukee.
And if the filter gets clogged, it will push it to the by-pass.

Of course if you change your oil at 3000/3months, you will never have this Issue to begin with.

And Syn Oil will flat spot your roller bearing because it is too slick. Got that straight from a Harley tech as well. It was the H-D's official line for years.
Sorry, at 60 psi bypass, why even have a bypass valve, especially on an EVO where the pump never reaches that pressure.
If you can post the Technical Specification H-D uses to purchase its filters, I may bite, but at this point, no way.
Do they still make a separate filter for EVOs?
In addition, all synthetic filter elements could be considered 5 micron because they will all catch a 5 micron particle every now and then. The real question is filter efficiency at the 5 micron rating, both single pass and multi pass efficiency which H-D fails to publish anywhere.
I am not saying H-D are not good filters, I think they are, but to judge other filters solely on their micron filtration rating is BS.
Could it be the H-D tech was talking about the oil bypass valve in the cam plate was rated at 60 psi. That one I could believe.
One final comment, if the TC motor requires 5 micron filtration to prevent it from clocking oil lines and holes, it is a piss poor design.

[LittleBear]

see attached.

[ATTACH]Micron[/ATTACH]

[dwarthog]

It wasn't too long ago I seem to recall that HD said putting synthetic oil in their motors would cause them to fail.

Gotta give HD credit for keeping the marketing drumbeat going on their HD labeled products being the only suitable replacement parts for their bikes.