Please take a look at this picture and let me know if this is excessive foaming. This was taken with the mill running at 1800 (stock motor) after 30 mins. After turning the mill off the oil level levels out at just a little over half of the sight gauge and the bubbles are gone ater just a few minutes. I am using Mobil iso68 med heavy (or whatever Aaron recommends for 1800 operation). Should I go to the next lighter oil? I plan to do mostly Al and some steel. Thanks
