anyone know if this sounds like a blown head gasket. Truck runs like a champ. Any easy way to check this.

you can have a pressure check ran on it ,this will help determine if it has a blown head gasket or not,,it may be a cracked head also,either way keep an eye on the coolant level and don't let it run dry on coolant,the pressure check is the best way to find out ,good luck with it.

yes it does.
Your oil will turn brown.