What is RM Cash
Drew in AZ
Super easy. Spray on cleaner. Wait. Rinse with water. Spray on oil. Done. I think I cleaned my filter 5 or 6 times with one package.
Kenton in OH
I've used a number of filter oils, this one seems to work the best. It's really easy to get worked into the filter foam and seems to do a better job of catching debris, IMO anyways.
Tim in NY
Works great, spray on and walk away. Rince with water and repeat. Usually takes only two applications before the filter is clean.