What type of oil does a 2007 mustang use?

The type of oil a 2007 Mustang uses depends on the engine it has. There were several engine options available that year. To know for sure, you need to check your owner's manual or the sticker located under the hood (often on the radiator support).

However, generally speaking, a 2007 Mustang would likely use 5W-20 or 5W-30 conventional or synthetic motor oil. The owner's manual will specify the exact weight and type (conventional, synthetic blend, or full synthetic) recommended by Ford for your specific engine. Ignoring this recommendation could void your warranty (if applicable) or damage your engine.