I've been quite interested to read website forums and watch videos of oil filters this weekend - sad old bugger that I clearly must be.
I stuck a Suzuki branded filter on my bike yesterday with around 2.5 litres of clean oil and then decided that I'd change the oil again after a couple of hundred km, just to flush out some more of the crud. And so began my search for a suitable filter.
I actually started looking for oil recommendations but found almost nothing, including a search on this site. I'd like to know what other people use and why, not an explanation of the different weights etc.
The choice of oil filter appears to be, if not opting for original Suzuki, HiFlo or K&N. Then I read that a K&N is just a HiFlo with a different logo. I now get the impression that all of the worlds' oil filters are made by one company somewhere in the middle of China and then surreptitiously shipped around the world for various different logos to be painted on them.
So I'll just stick to Suzuki brand and work on the notion that Suzuki wouldn't sell a filter that's bad for their engines.
The choice of oil that stands out for me is most commonly Motul and Castrol. I think they'll do until I hear of a better recommendation. I make a change of oil and filter not longer than yearly on my cars and bikes so I think it's OK.