G'Day guys,
my new-old milling machine is out of oil and I don't know which one is most suitable.
I don't have a manual for it, so I also don't know how much can fit inside...

I found recommendations to use hydraulic oils like "Shell Tellus 46" (46?), but there are quite a lot of different versions (S2MX, S2VX, S2VA, S2MA, S3M, S3V, S4ME, S4VX) and there might also be another brand to consider equaly.

My mill is placed in a shed. So it might get very cold in the winter...
IMG_20200326_164246_cut.jpg It's an old 1989' HWACHEON WMTH1300 and about 2.5m (8 feet if you prefer) in every direction.
Would be nice if the cold wasn't a dealbreaker for the oil. I will definitely not use it everyday and probably a lot less in winter, tho.
I guess the "M"-versions of the Tellus-oils aren't suitable due to the temperature range..?


Please give me your best guesses
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