We all know that no matter what "Waterproof Cooling Fan" will need to use some lubricant to make machinery to maintain a certain smoothness in the process of running. Less oil Jia Duojia fan is a fan of the quality of a relationship. Oil adds a fan in operation, it is possible to put the oil thrown out. Oil less of it, it will make the life of the fan will not reach 2W hours. Rejection of oil is divided into two kinds. One is dumped oil cooling fan page, one is "Waterproof Cooling Fan" label at the rejection of oil. The first rejection of oil, mainly oil too much. There is oil too thin. The second rejection of oil, mainly because oil does not cover the rubber seal, but the seal is too little. "Waterproof Cooling Fan" in itself is of a sticky label, then you tear off the label, oil blocks also torn out. Did not pay attention when, after the label back then, there is the possibility of oil spills.