QR Code Link to This Post Hi. I have 2 Uni air filters I bought and I guess I don't know how to use them. They've been maybe 60 miles on 3 different rides and I can't figure out the oil part, so I'm going to sell them and go back to stock. I paid $75 for the pair, but will sell them both for $50 with an aerosol can of oil free, or $30 each. Text is the best way to get in touch with me and thank you for looking. Picture is for reference only, but they look exactly like it. show contact info .