The aluminum wheels rest on a steel register, against a steel rotor or drum. Without getting into metalurgy what happens when you put steel and aluminum together?
The layer of corrosion on the hub face of the wheel? That needs to come off. When you torque the wheel that layer of corrosion acts like a sponge and will keep the wheel from properly seating. And the newer ChryCo wheels seem to be glutton for it.
Goodyear, Michelin, Firestone, pick your tire company, actually has training videos on this. Believe it or not, there's actually a Fed mandated class on this for OTR tires and another for pass car/light truck (ask me how I know...my certificate's around here somewhere. I had to take the class when Bridgestone bought out the tire shop I used to work for. I had to watch the training video when I first went to work there.)
Get the layer of corrosion off with something gentle. Brown cookie on a die grinder, nylon rust buster wheel on a drill, whatever, then torque to spec. Clean your rotor and/or drum face as good as you can also. There's actually a tool made for air impacts that wraps around the wheel studs to clean around those, too, but a nylon rust buster wheel will do a good job.
Oh, and don't lube your stud threads. That's a dry torque rating. Anti-sieze, penetrating oil, etc, will affect the torque, too. Your best bet is a thread chaser or die down the stud thread to clean it up before you tighten the wheel nuts.
