From UNI the OG foam filter:
Quote:
first remove the filter from the engine and separate the inner and outer layers if applicable. Then, saturate the foam with a grease-cutting cleaner (like Uni Filter Cleaner, Simple Green, or dish soap) and let it soak for a few minutes. Rinse thoroughly with warm water, ensuring all cleaner is removed. Allow the filter to dry completely before re-oiling with Uni Filter Foam Filter Oil.