human
My car isn't running as well as it used to. Is there anything I can do to get it running more smoothly?
assistant
Yes, there are a few things you can try. First, check your oil and make sure that it is topped up and not low. You may also want to have an expert look at the engine and see if there are any signs of damage or wear. If everything looks good, then consider changing out the spark plugs and air filter. This should help improve performance and reduce noise from the engine.