Whether you can use 5W-30 oil in your 2009 Jeep Wrangler depends entirely on the engine and what the owner's manual recommends.
Check your owner's manual. This is the definitive source. The recommended oil weight and type will be specified there, based on your specific Wrangler's engine (e.g., 2.4L, 3.8L, etc.). Using the wrong oil weight can damage your engine.
