LPG Fogging into a 200Tdi Defender

Has anyone got any experience of fogging LGP into a 200tdi?

I am hoping to do this to my rebuild Defender. It improves mpg as it allows 100% of diesel to be burnt instead of 80% and apparantly gives a cleaner burn with more power. Somewhere I red you could put it in a little bit like nitro.

Thanks

Not a very successful idea-thats why you don't find many businesses offering it.
http://www.go-lpg.co.uk/diesel.html
Bio diesel or diesel and veg oil better

I have ran on home made bio-diesel 100% for the last 2 years.