Five Greasy Joannes, one van and 3,000 miles is all it takes to prove that fat really is a feminist issue and that car exhaust can come up smelling like donuts. To the punter 'Trans-vesterification' might sound like an experimental surgical procedure performed by lip-synching cross-dressers Its actually the process of converting vegetable oil to fuel Fat of the Land follows live intrepid explorers of fast food slurry vats and shows a way forward that is not only ecologically sustainable but that lets you eat chips as well, (dv)