ibelive that the sudden interest of the red diesel by the revinue has got some thing to do with the upsurge of diesel cars on the road. in the last 10 years and no doubt the rise in the use of red diesel, i used to be able to walk into an oil depot and buy 25 litres in a drum, not any more they know that its been used by cars, unscrupolus people will use the cheapest they can, and have you noticed the price of cooking oil going up, its just not a level playing field anymore