LuciferDarklord,
Others have posted before about biodiesel. I can't remember one posting that has made reference to the information about biodiesel blends that is contained in the owners manual (Australian edition). Some have even emailed Hyundai. A close read of the relevant section reveals that it is an option, provided it meets the specifications listed in the manual. Perhaps many at Hyundai have not read the manual either as the advice people received seemed a bit confusing and suggested the use of biodesel was not allowed and would negate warranty.
I read the information when I purchased the ouri30. It was very specific and did not discount the use of biodiesel blends. I have erased it from my long term memory as I do not have access at the moment to a biodiesel product and buggered if I am going out in the cold to refer to it now. But I know where to find the information if I need to in the future.
Bob