Human: How can I tell if my car needs an oil change? Assistant: 
To tell if your car needs an oil change, you should check the owner's manual for the manufacturer's recommended oil change interval. You can also look for visual signs, such as oil spots on your driveway, engine noises, smoke from the exhaust, or a check engine light. Additionally, you may smell a burning smell coming from the engine. If any of these signs are present, you should take your car in for an oil change.