4.7 liter engine oil foams

Change the pcv It's located on the oil filler tube housing, It's a dealer on part as with most newer dodge parts cost 7 dollars, It should be replaced every 20k miles, it allows your crankcase to vent out any condensation out of it, if not replaced you will get foam in your oil. I suggest you use a engeune cleaner like CCR run for 5 minutes drain and replace oil and filter put 16oz of seafoam in crankcase along with new oil this will go thru the hole oil system and the pcv clean out the water and your good to go.
Change your oil 3000 miles later and 16 oz of seafoam every oil change and your problem should not return.