My mechanical Brother manual says not to oil the machine. It is 10 plus years old and well used but every once in a while I take the front cover off and put a drop of oil into the needle bar area where there are moving parts. It is a cheap machine that will sew on anything with any kind of thread and isn't fussy. Even when I sewed a quilt out of chenille and flannel and didn't think to clean out the bobbin area which ended up packed tight with lint. So, maybe your machine doesn't need to be oiled.