Too much biofuel in diesel has been blamed for clogging up the filters in hundreds of tractors in Scotland.

After 380 complaints to the farmers union, Petroineos, which runs Scotland’s only crude oil refinery, has agreed to reduce the amount of biofuel in its tractor diesel. The colder weather brought tractors to a standstill as solidifying fuel blocked engines and ground farms to a halt. I don’t think using the barrow to feed the cattle will work either. With an average herd of 54 suckler cows it could take some time, even worse if they are wintered on Highland mountains.