Rock Oil for Slab Saw

I have used Roc Oil for several years now because it is non-toxic and has very little oder but also because it is light and the particles settle to the bottom unlike baby oil which is much thicker and tends to suspend and make a thick sludge and has to be changed sooner than a lighter mineral oil. I have heard of animal oil as well and have considered trying it  but does anyone know the vescosity, is it light or rate the same as baby mineral oil.