How refuel 220V Cooling Fan motor

Careful friends like to "220V Cooling Fan" add oil, introduces a lot of people filling sewing machine oil on the magazine, also was introduced to raise the refrigerator oil, now to introduce to you some experience.
1, the use of frozen oil, transformer oil as a lubricant, within three years "220V Cooling Fan" Electric full burn.
2, using the machine oil, three years after the 35% damage. These include burning, copper bearing wear, can not be used.
3, "220V Cooling Fan" who use engine oil within three years (not all fuel each year, many only been to three years once the oil, and even those who have more than three years) in addition to the dust components collision damage, screws lost, but basically intact. The method is used in lubricating oil on foot after a few drops of sewing machine oil.