Creamy scum on oil dipstick.

Hi if you have creamy scum in your oil then it sounds like you have a bad head gasket.the coolant is mixing with your oil if still under warrente i would bring to dealer to have fixed.

If it not losing water then its not a head gasket... i have the same problem and its from condensation... mazda has complaints but not enough for a recall... they have a new dipstick that is available and it is supposed to stop the problem