Have seen in the past the owen method but not sure I'm ready to put a nice pair of UmmaGumma in it (maybe I can try with another tire)(stressed mode)... I've see some months ago on a Merlin FB group a guy who use like orange bio dishwasher and a vegetal oil with nice results but even some asks no answer from him. If some here have experimented this method, thanks to share your experiences and results...