The winter chill has left farmers across Scotland with huge supplies of “unusable” biofuel that cannot cope with the cold. More than 400 have logged fuel issues with the union NFU Scotland, complaining that their vehicles had broken down in the recent cold snap. Tractors, snowploughs and construction vehicles were said to be at risk from “expiring” fuel, leaving crops and livestock at risk. The UK government requires diesel fuels to be blended with a minimum of 7 per cent biofuel, made from materials such as oil, fat and grease waste, under rules introduced to reduce the pollution from diesel fuels. When biodiesel cools to low temperatures, however, some molecules aggregate, causing the liquid to gel and solidify. This prevents it from passing through engine filters, which must then be replaced.
Times 9th Dec 2019 read more »