The easiest way to get the oil out is to take it to a jiffy lube place and have them suck it out, then add the synthetic. But, if you are still having leaking problems, you need to get that fixed first. If it is now the rear of the pumpkin, then you are going to have to take that cover off anyway to replace the gasket, and that will drain that dino lube. Don't be in a hurry to get this done. Take your time and make sure you have all your ducks in a row before taking action.