I don't know if crashing the dollar is good for they yuan. In fact it has been a race to the bottom for years with currencies. Exporters want cheap money. Canada's economy had a great few years because the money was cheap vs the us. So a really strong petro yuan probably isn't wanted. Just a thought.
RE: Petro Yuan Just Launched! U.S. Petrodollar DOOMED as China Attempts To Control Oil Market!