How often should I change the cabin filter in my vehicle to ensure optimal air quality and engine performance? Is it sufficient to follow the manufacturer’s recommendation that typically suggests changing it every 12,000 to 15,000 miles, or might there be additional considerations to take into account based on my driving habits? Should I take into account the environmental conditions in which I operate my car, such as urban areas with higher pollution levels or rural settings with abundant pollen and dust? What symptoms might indicate that my cabin filter is overdue for a change, like reduced airflow or musty odors permeating the cabin? Furthermore, could there be significant repercussions on my vehicle’s HVAC system if I neglect to replace it in a timely manner? Ultimately, how can I determine the optimal frequency for replacing my cabin filter tailored to my specific circumstances and driving environment?