How to increase CPU fan solid butter?

Has been opened to the back of the stickers to see the oiling, do not want to use sewing machine oil, volatile too fast, get a little butter, but butter is a solid, if using toothpicks and the like to add Department hole note how little effect Kind, will not obvious, would like to use the heating method Ronghua Cheng liquid butter and then drop that in.I do not know CPU fan can not afford to heat the oil itself, this effect would be better?

Or increase the oil it honestly ……

you into the heat butter until the butter has once again solidified
you The fans do not turn on the move with oil mixed with some butter.Coupled with.
Said to have better results.You do not use solid butter.
I used transformer oil (similar to that used in the watch repair ).