Biodiesel would be cleaner again! Vegtable oil burns grey instead of black!

Anyone tried a little two stroke in their diesel?
I used to do it on my old 406 and tried it today in my new 406, within 10-15mins you can tell straight away!
The car pulls harder and for longer in the revs, smokes less and you use less throttle to maintain a speed. Also lubricates all the injectors and pumps.
I put 250ml in my 70l tank.
Have a google, quite a few people do it!