ENGINE OPERATION - Operating Instructions Has Run Dry or After Fuel System Service has been Performed on page 62 to allow the oil pressure to stabilize. Fuel dilution of the lubricating oil. Carbon buildup in the com- bustion chamber. Sticking of the valves in the cylinder head. Reduced performance. Damage to aftertreatment components. 1 Cold Weather Starting Steps for starting the engine in cold temperatures. CAUTION The use of starting aids, such as ether, may result in damage to the engine and aftertreatment system. Follow this engine starting procedure when the outside temperature is below 50° F (10° C).
If an engine must idle for an extended period of time, it should be done at a fast idle (1,000 RPM maximum) at coolant temperatures below 150°F (70°C). 3. For coolant temperatures below 150°F (70°C), use a low gear and drive at moderate engine speed until the engine coolant has reached operating temperature. Do not let the engine idle longer than necessary. CAUTION Starting Procedure After Extended Shutdown or Oil Change Guideline on starting the engine after prolonged shutdown or oil change.
To reduce the possibility of damage to the lubricating oil pan, due to the ma- terials used in the manufacture of the lubricating oil pan, under no circum- stances should an external heat source be applied directly or indirectly to the lubricating oil pan. After extended shutdown or an oil change follow the Normal Starting Procedure on page 20. Operating the Engine After the engine starts: 1. Follow the Normal Starting Procedure on page 20. CAUTION Monitor the oil pressure and coolant temperature gauges frequently. Refer to Engine Oil Specifications on page 40 and Engine Coolant Specifications on page 45 for recommended operating pressures and temperatures.
Shut off the engine if any pressure or temperature does NOT meet the specifications. Refer to the vehicle operator's manual instructions for any additional cold weather starting procedures. 2. If starting a cold engine, slowly increase the engine speed. This provides adequate lubrication to the bearings and gives ample time Do not operate the engine at low idle for long periods of time when the cool- ant temperature is below the normal operating range. This could result in the following: Y53-1166-1G1 (08/2018) 21