I have a chemist friend who has been in VO industry for over 25yrs. He is concerned about the potential it may not smell very good. The algae has alot of similarities to fish oil - chemically. The stability of ALL vegetable-based oils is a big issue. The biodiesel industry is struggling to extend the shelf-life of its fuel. Currently, no bio-d at the pump meets the ASTM standards for fuel. This is largely why no OEM recommends more than a B5 blend in their vehicles.