There are literally thousands of World War II action movies that have been made over the last sixty years. Those that take place at sea and show the Navy in action can be as thrilling as pictures about the infantry fighting on a beachhead. And submarine movies do a great job of showing action when there is none.

In every submarine movie there is the sub captain firing torpedoes at a convoy of enemy ships. As soon as the torpedoes hit their target the sub dives and tries to evade the pursuing enemy destroyers that are launching depth charges into the ocean.

We see a close up of the sub crew as they let their boat settle in 50 fathoms of water with depth charges exploding all around them. The action is in the faces of the crew. As the hours tick by on the screen and the depth charges explode, shaking the little craft, the men begin to sweat. Not just from fear but from lack of air. The air always begins to run out in submarines in the movies. Luckily, the enemy convoy moves on and the sailors on the submarine surface and breathe fresh air again. Now, no one is saying that your Xterra is under water, but it still needs fresh air to breathe in order to keep your engine alive. A clogged air filter is like a submarine under water for too long.Be sure to replace your clogged air filter with a new Nissan Xterra Air Filter before the performance of your car takes a dive.