I agree with cgocifr that the best way to change the oil is to remove the drain plug from under the car. The action of the oil rushing out drawn by gravity, pulls out the containments and any minute metallic particles that reside in the bottom of the pan. The pump, may, remove some of the particles but only at the site that the probe contacts the bottom of the pan.

That said, I'll use the pump method. I have a pump that I use on my jet ski because you can't get a container under the sump and the only way to get the oil out is to suck it out.

I think that even though you can't get every last drop of oil out of the Crossfire engine by using the pump method, it's good enough. Any small amount of oil left in the sump will be well diluted by the eight and a half quarts you will be adding. Be sure to change the filter each time and either method should be acceptable.