The owner's manual for your 2009 Dodge Charger with the 3.5L engine will specify the recommended oil viscosity. It's
crucial to consult that manual. While many modern cars use 5W-20 or 5W-30 synthetic oil, your specific model year and engine might have different requirements. Using the wrong viscosity can damage your engine.
Don't rely on general advice; check your owner's manual for the correct grade.
