nejcek74

If I remember right the temperature/viscosity dependency this one should be around your values: https://www.tsmoly.com/oils-sewing-machine-p-231.html but better ask them. useful online calculator https://fluidpower.pro/temperature-viscosity-chart/ And I would evaluate what it actually means to use a certain viscosity of sewing machine oil in my application. Because it is very different from industrial production where machines are running 8 hours a day at high speed. I use Spirit2 in all my old Pfaffs, which has lower viscosity, but I guess it's ok as I never run machines on full production speed. (I know, assumption is mother of all f*** ups) https://www.spirit-spray.com/spirit-2-vaseline-oil/cat/k-2002053/

I have a Pfaff 1222. It was my second machine and I fell into the "sturdy old machine" trap. It's a nice running machine with the IDT (Integrated Dual Feed) that excels with all kinds of slippery, soft, extra thin or soft and thick fabrics. But it doesn't work well with thick woven fabrics or leather, which are difficult to punch. I used it to make my first canvas bag. Poor machine, I still feel sorry for it. And it's an old domestic machine, it's slow. Maybe it could work for small pieces, anything else it's no fun. Then I found an used industrial Pfaff 1245 for 400€. Similar numbers but a completely different machine.