Hes holding your air filter and PCV valve and recommending ... The post How To Test and Replace the PCV Valve on Your Car ...

How Often Should You Change Your Car Air Filter You should replace your air filter every 12,000 to 15,000 miles, but it might need to be replaced more often depending on your driving environment.

Changing a car’s cabin and engine air filters can also increase the car’s longevity and the passengers’ comfort. A clean cabin air filter allows air conditioning and heating systems to work ...