Hi, I have been asked at work if I knew if a Merc 190 diesel would be ok to run on veg. Now, I'm no expert (far from it) so I'm asking you guys! Also if any other cars, not necesarily a Merc could run on it relatively easily, he was mentioning Peugeots etc etc, any advice welcome. And what/where exactly to buy the veg, ie supermarkets/cash&carry, near where he lives there is a used oil refinery where you can top up! I am going to give him this forum address, I shall make sure he joins up!