c.As the vehicle (engine) operator, you are responsible for the performance of all scheduled maintenance. Anyreplacement parts used for required maintenance services or repairs should be genuine Navistar Truck parts orequivalent in quality and performance to genuine Navistar Truck parts. Use of inferior replacement parts hindersoperations of engine and emission controls and can reduce engine life.WARNINGTo avoid personal injury when performing maintenance and repairs to a turbocharged engine with engine air inletpiping disconnected, a turbocharger compressor air inlet protective shield should be installed over theturbocharger air inlet.WARNINGUse only the following procedure to remove the pressure type cap from the radiator. Always allow the engine tocool first. Wrap a thick, heavy cloth around the cap. Push down, loosen cap slowly to its first notch position; thenpause a moment. This will avoid possible scalding by hot water or steam. Continue to turn cap to the left andremove.CAUTIONIf the coolant should get extremely low and the engine very hot, let the engine cool for approximately 15 minutesbefore adding coolant; then, with the engine running add coolant slowly. Adding cold coolant to a hot engine maycrack the cylinder head or crankcase. Never use water alone.3-9.2 Cooling System. A complete drain, flush and refill with Internation or equivalent antifreeze and coolant isrecommended once a year. This recommendation applies to all vehicles including those with low total annual mileage.3-9.2.1 Anti-Freezea.The cooling system of your new vehicle is filled at the factory with permanenttype anti-freeze. Permanent-typeanti-freeze may be added undiluted if protection below -20°F (-29° C) is required.b.Properly inhibited coolant will keep the engine cooling system free of rust, scale deposits, and corrosion.3-6
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