Ask the Experts Air Filters
Air is necessary for successful combustion in your engine. In fact, for efficient combustion, a modern diesel engine requires several thousand times as much air as it does fuel. Clean air - air almost 100% pure - is critical to engine survival and vital to its performance.
If you add a turbocharger to your engine, you may need to make changes to the intake ducting. Turbocharged engines require even more free-flowing clean air, 750 cubic feet per minute or more. Naturally aspirated engines demand about 20% less, but still these engines can require up to 15,000 gallons of air for every gallon of fuel. In either case the induction system (ducting, hoses, and reducers) brings outside air to the engine