thinking about getting a pannel filter for my octy vrs and have a couple of questions about what to get.

are all the reconisable campanies filters equal or are any particularly better?

K & N

Green Filter purely because they tend not to put too much oil in the filter.

What purpose does the oil on the filter serve?

Would it work without any on it at all?

What purpose does the oil on the filter serve?

Would it work without any on it at all?

The oil is to catch finite particles which the cotton gauze on it's own won't.

For filtration properties paper is actually the best but it's not freer flowing compared to cotton gauze.