Your truck engine really needs clean air to operate efficiently. Let’s go egghead for a minute. For every gallon of gas we burn driving around Phoenix, twenty pounds of carbon dioxide comes out the tailpipe. Question: how can a gallon of gas that weighs a little over six pounds produce twenty pounds of carbon dioxide?
The answer is that the carbon comes from the gasoline, but the oxygen comes from the air. You see, it takes about twelve thousand gallons of air to burn a gallon of gas in your engine. Clearly, your truck needs a lot of air to keep going in Phoenix. A lot of clean air is better.