Personally I use a 0W-20 M1 in working on antique Sewing Machines. It seems to do a better job than the Singer oil & $6.00 a Quart is a lot better than about $1.00 an oz in those little 4oz bottles.
Only downside is its not "Stainless" but unless you can throw it the washing machine its best to keep the oil OFF the cloth to begin with & if you can it doesn't really make that much difference.
Have also started using it on most anything needing a light oil, including guns, don't know what affect it has on wood so currently using the same basic precautions to keep it out of the inletting as any other oil.
