Air System

On Detroit™ Gen 5 Heavy Duty engines, outside air enters the engine through the air filter and is drawn into the turbocharger where it is compressed. The compressed air is then forced through the charge air cooler (heat exchanger) where it is cooled. Next, cooled air flows to the intake manifold and into the cylinders, where the air mixes with atomized fuel from the fuel injectors.

For optimum engine protection from dust and other airborne contaminants, service the dry-type air cleaners when the maximum allowable air restriction has been reached. The air cleaner restriction indicator (filter minder) should be inspected per the maintenance intervals, Preventive Maintenance Tables, or more often if the engine is operated under severe dusty conditions. Replace the air filter if the filter minder has reached maximum allowable restriction. Do not allow the air inlet restriction to exceed maximum allowable restriction. Always use air filters that meet Detroit™ specifications. The use of air filters that do not meet Detroit™ specifications may result in premature wear or equipment failure.