Yes, please only use sewing machine oil!! I did not know this when I first started sewing so I use what I had always used on other things-- 3in1 oil-- bad bad bad. I got my machine so jacked up that it cost me $$ to get it cleaned and the repair man scolded me.
Singer sewing machine oil is good and i found one that is called "zoom Spout Sewing machine oiler. It has a long spout that telescopes to reach those difficult places and it bends also..love it.