Rapeseed oil generally contains a high level of erucic acid, which is mildly toxic to humans in large doses. Traditional and other uses have been for lamp oils, soap making, high-temperature and tenacious high-erucic acid lubricating oils and plastics manufacturing. With the shill to rapeseed 00 in the European Union, the low erucic acid content of the resulting rapeseed oil and its specific fatty acid composition make it a highly appreciated edible oil.
As the European rapeseed production is "conventional" (that is non-GM0), the preference of the European food customer goes to rapeseed oil produced in Europe over other oils or other origins that might be produced from Gtv10.
Rapeseed oil has also become the primary feedstock for biodiesel in Europe (estimates for 2006: more than 4.0 million tons of rapeseed oil went into biodiesel).