You guys crack me up. I thought I was the only one to use the Zoom spout oilers. I bought a case a year and a half ago, and still have a couple in my garage. I refill them with regular motor oil, and throw them out once I loose the cap. I don't think the oil is anything special, but the oiler is the only one I've found that I can put in my tool case that won't leave a sloppy mess.