Pat494 said:Just to add my pennyworth on the oil situation.
There are various websites that claim with about £100 "add-on" one can run one's diesel car on vegetable oil !! Vegetable oil at my local Tesco is about 40p a litre and it burns clean.
Sounds good to me and for the farmers. So I wrote to all 3 political parties. Guess what. After a considerable delay 3 brush-offs. Well I did try.
Don't forget Excise Duty at 26p (I think) per litre.
Also, according to one Biofuels company I spoke to, many modern diesel engines have an immobiliser to protect the engine in case a fuel other than diesel finds it's way into the tank. It makes no distinction between petrol or bio-diesel, and will shut the engine down.