[Vwdiesel] Fuel Question

[MikeyBigFish at wmconnect.com]

Folks,
        I understand a variety of substitute fuels are becoming more popular
due to the steady high price of petroleum. 
Have read of BioDiesel, WVO, ATF, etc...
So, what is the consensus on HYDRAULIC FLUID? 
Does this burn in a diesel or
is it inflammable or hazardous to engine components?
Thanks, Mike in VA|||||||||||||||||||||||||||||||||||||||||||||||