Normal Engine Operation

Observe engine coolant temperature and engine oil pressure. Temperatures and pressures will vary between engines and with changing operating conditions, temperatures, and loads.

Normal engine coolant operating temperature range is 85°–97 °C (185°–207 °F). If coolant temperature rises above 113 °C (235 °F), engine will reduce power automatically. Unless temperature drops quickly, stop engine and determine cause before resuming operation.

Operate the engine under a lighter load and at slower than normal speed for first 15 minutes after start-up. DO NOT run engine at slow idle.

Stop engine immediately if there are any signs of part failure. Symptoms that may be early signs of engine problems are:

• Sudden drop in oil pressure
• Abnormal coolant temperatures
• Unusual noise or vibration
• Sudden loss of power
• Excessive fuel consumption
• Excessive oil consumption
• Fluid leaks

NOTE: A revving sound may be heard for an instant after starting, as the variable geometry turbocharger cycles; which is normal.