What is your engine breathing? Better yet, what are you breathing? You and your engine need clean air to survive. When the filters in your vehicle become contaminated with dirt and debris they need to be replaced. As in the accompanying pictures you can see that with neglect, the filters become clogged and do not allow sufficient airflow. Restricted airflow to the engine or the passenger cabin can can cause running problems for the engine and comfort problems for the people in the vehicle. During a routine oil change our technicians inspect the engine air filter as it is much more accessible than the cabin filter. If we find a contaminated engine air filter we generally recommend both. Something as simple as an air filter can make a big difference in engine performance and in comfort for the vehicle occupants. Replace your filters so you and your engine can breathe easier!