Ak to pomoze, Shimano je bez problemov (
http://forums.mtbr.com/brake-time/tektro-mineral-oil-can-i-use-any-others-479232.html)
I use Shimano Mineral oil to bleed the Tektro's and it works great. I have heard of some motorcycle mineral oil's ( not DOT fluid) that will work too, but can't recall the brand or model. I believe there is a synthetic mineral oil made for motorcycles too that I read will work with some systems. I'm sure deeper searching will come up with info here on MTBR.
I believe that Magura has a couple different types of fluid too. They are different weight oils. I think it is Magura.
The Shimano oil is pretty easy to find at most local shops, so I would say to look for that.
The Tektros are really easy to bleed. Some of the easiest I have done so far. In fact, I love bleeding them....LOL
Olej na sijacie stroje asi fungovat bude, ostatne mal by fungovat aj v DOT systemoch ako nudzovka, akurat u brzd ide aj o viskozitu , tesnenia a bod varu. Osobne si myslim, ze
olej na sijacie stroje bude o dost horsi ako hydraulicka kvapalina na to urcena. Z hladiska teplotnej odolnosti.