With the devaluation of the US dollar, it might be reasonable to buy directly from the states, in which case Todd E is the man.
Personally, I wouldn't trust anyone who predicts dire consequences when none are warranted. And by my reckoning, 13 km/L is roughly 50 mpg- which is good mileage. Now, you might benefit from a PCIII, but I've run 17Kmiles (27 Km) and no catastrophes so far.
Jason