Spectroâs Air Filter Oil technology provides a significant step forward in filter function: its âHigh Tacâ synthetic formula traps and holds dust, even after hours of vibration exposure. With Spectro Air Filter Oil, dust canât work its way through the filter the way it does with other aerosol products. Use with SX Filter Cleaner for complete filter maintenance. Fast, easy to use â wonât dry out, stays active. Ideal for all OEM and aftermarket air filters. (Do not use on paper types â only on foam or cloth types.) Super tacky âHigh Tacâ technology traps and holds dust.