Perhaps then the items are better suited to diesels and thus your transit would be perfect.
Well, I ordered one from Germany last night, so I'll let you know. I did a bit of research online and they only seem compatible with about 50% of cars - don't really know why.
I'll try it on our 3 vehicles (GTI, Transit & Renault Espace) and see what happens. It is a silly gadget and I can well see myself getting tired of it after a few days, even if it works as advertised on that Aussie video, but I can always sell it on again.