2-stroke oil & paper/stone/screen filters

From what I learned in chem class both oil and gasoline are hydrophobic and therefore will mix easily into a homogeneous solution. The only time you run a real risk of separation is when you have an organic oil like castor mixed with a synthetic fuel like gasoline. I hope this helps. Go for the paper filters, they're just fine with almost every mix other than possibly castor oil.

i usually pick paper first time, cause most people pick rock. paper covers rock.

wait, what were we talking about?

on my bikes, i run the in-tank, screen filter only. never had a clog yet.