Theres a lad at work who goes 4X4ing, most of them put vegtable oil in theres, there all about 10 years old though. Theres an article on BioFuels in Land Rover International I was reading it today.
Is it really worth all the hassel though of registering with the taxman, going to the shop, bla bla bla just to drop the pence per litre by 10-20p???