In the US, the EPA made the oil companies reformulate the gas and diesel oils, they took out the zinc and some other stuff. I imagine since you do not have the EPA to deal with your dino oil should have higher zinc and other good things for engines. A good 30 wt, or similar diesel oil should work in a pinch. I use Maxima break in oil and have had good luck so far with it.
As far as what not to do I would wait for the engine to warm up to give the pistons time to grow. I would then flog the piss out of it and hope for the best. If that does not fix the high oil consumption I would just live with adding oil until the next rebuild. ( Which is what I am doing with my ducati at the moment
Let us know how it goes and good luck.