For decades, cars have been a normal part of life. People use them for everything. From going to the store or traveling across the country, cars have become deeply rooted in our culture to the point where we are unable to imagine life without them. The resources needed when owning a car is much more than before they became a normal part of life. The most essential part of every car is its engine. Each engine has many parts and needs to be taken care of in order to run properly. Though cars are essential to modern lifestyles, there have been increasing problems with emissions and how they affect the environment.