On the older ones like mine, this is typically caused by the valve cover gasket leaking and allowing oil to seep down the block (and also into the plug wells). Doesn't take much of an oil leak to produce the smell. However this would seem less likely to be happening so soon on a 2010, but who knows. IDK if the 2010 is the same as mine, where the VC bolts are accessible by just removing the deco cover. Maybe one of the 2010 guys could post this info. In any case it should be very easy to check if some of these bolts are not tight enough. If you can't do this yourself, then do you know of an independent shop with a good reputation in your area?