How should I clean my Carbon Fiber wheels?

Use warm water with a mild cleaner, avoid petroleum or alcohol based products and don’t use aggressive or abrasive cleaners. A mild de-greaser will remove any oil. You can polish them with any normal polish for a painted surface. If you want to refurbish the wheels to get back the gloss and shine, then use a polish with a rubbing compound in it, and complete the process with a finishing polish.