Hello all, I'm looking for some guys who have been around a while to clear up some pretty wide spread misinformation on Non-Hypoid gear oil. MB says to only use Non-Hypoid gear oil in your unimog transmission. Now a lot of people don't even know of the existence of Non-Hyupoid oil much less understand what it is and why it should be used over regular 90w. The other problem is it is not easy to find the stuff. So, my question is how important is it really to be using the stuff in our trannies in this day and age of syn oils? And if it isn't, who's had good luck w/ what gear oils in their trannies?