The amount of oil a 2003-2023 Dodge Ram 3500 van (assuming that's what you mean; there are different engines) takes depends entirely on the engine. There's no single answer. You
must check your owner's manual. The correct amount is printed there.
Looking up the amount online without knowing the specific year and engine is unreliable and could lead to overfilling or underfilling, both of which can damage your engine.
