SewpahDewpah,
Do not use 3-IN-1 oil to lubricate your machine. That is not good for sewing machines as it tends to gum up. It's OK to use it to clean the outside with the cotton balls, but sewing machine oil is preferred for that too.
Use sewing machine oil to lubricate the machine. Tri-Flow oil available at Sew-Classic and maybe your local bicycle shops is much better than regular sewing machine oil. A bit more expensive, but worth it.
Joe