For maximum benefit oil both the gray and the red! You will find very often that you will just need to clean and reoil just the outer red stage of the filter.What does everyone do to oil the Uni filter? Do you oil the inside and outside of gray section only or do you oil the red section too? It seems like a waste of time to oil the red too, but I guess I will do that as well. Thanks!
Bread bag, ziplock bag, etc... yup works! I also put on a pair of latex gloves like doctors use and work it in. Keep the gloves on when installing and removing filters as it keeps the hands from getting sticky, etc. Another use of that ziplock bag, latex gloves, a bread bag, etc. is over your hand when giving someone first aid if they are bleeding. We ALL have been taught by now (I think all of us) that blood contact with someone elses blood even a family member is a big no, no.... Use most anything but avoid direct contact with body fluids like blood.I throw mine in a ziplock and work the oil in after I