I was led to believe it was only 300tdi and 200tdi engines which could run the veg oil as no ECU. I use it in my 300tdi Defender when I can get a good deal on it. During the summer 30 litres of diesel v 20 litres of veg oil, increasing diesel to oil mix as it gets colder. Diesel in first, then pour the oil in and drive for a few miles to mix it up a bit. Agree, it seems to run much smoother with the oil in although I seem to lose some top end power, not that I'm bothered as rarely get on a motorway