I am interested in changing the oil from the old original Vandercook oil to new SAE-20 oil in my Universal 1 and my #4. My question is how to go about it. The #4 has little flip cups for the oil and the Universal is just screws. Do I drain them from the screws, do I take off the flip cups, etc? If anyone has any suggestions or has done this before, I’m all ears!
Oil Change on #4 and Universal 1