Air Filters

The part in your vehicle preventing harmful contaminants from entering areas with important parts like your engine would be your air filter. You should replace the filter on a regular basis because it can become worn out over time or clogged, which prevents it from doing it's job properly. You should consult your manual for specific timeframes, though every 12 months or 12,000 miles is generally recommended. This can vary. Your vehicle will run best with a clean filter in place.