I have a singer 66 that has a grease chamber on it that needs to be packed with grease periodically.A tube slides out and you put grease in it. The grease is different than oil. It has gotten harder to buy the grease but I was able to buy some on ebay. Read your manual if you have one. They usually tell where to oil and grease them. If you don't have a manual try getting one on ebay. It is cheaper to maintain your machine yourself and not too hard to do. Good Luck.