I understand that. Hence me asking what brand you guys use.
I don't rate k&n oil or air filters.
Personally I like mann or mahle. Also mercedes use mann as there oem filters...
But what are other people's views on filtration?
Mann genuine and Mann aftermarket aren't always the same.
There's a funny display in my local merc dealer, they have a genuine oil filter next to what they call a pattern filter... It's undisclosed the brand....Pattern one looks almost identical to the genuine one, so must both be Mann.. But the pleating isn't as dense... Merc tend to use Guttman also