Hi Katrina,If you have a Heidelberg, use Mobil DTE Extra Heavy. It used to be called Mobil Vactra and is the one recommended in the manual.Good Luck!Carrie
My favorite is a product called Tri-Flow. Its similar to 3in1 but lasts a lot longer. Its what I use on my bike and my sewing machine too.Never use WD-40. It can cause build up, attract dirt and particles and doesn’t last very long. WD-40 is great for cleaning the metal parts of your press because the waxy content coats and protects the metal from rust, but wipe it down and don’t use it to oil moving parts.