"I have just read the June Sustainable Crediton newsletter article regarding problems with running a Citroen HDi on 100% biodiesel. I Drive a Peugeot HDi and I am reasonably sure it has the same engine as the Citroen. B30 is the maximum mix recommended for my car and is likely to be the same for Citroen"

Simon Watts

Editor: Can we repeat again here, we think biodiesel produced from waste oils is great, but check with your car's manufacturer whether it is suitable for your car's engine before using.