User Manual

46 RENR9968-02
Testing and Adjusting Section
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Wrong dipstick or guide tube
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Sustained operation at light loads
Excessive consumption of engine oil can also
result if e ng ine oil with the wrong viscosity is used.
Engine oil with a thin viscosity can be caused by fuel
leakage into the crankcase or by increased engine
temperature.
i02286625
Increased Engine Oil
Temperature - Inspect
SMCS Code: 1348-040
When the engine is at operating temperature and the
engine is using S AE 10W30 or SAE 15W40 oil, the
maximum oil temperature should be 110 °C (230 °F).
This is the temperature of the oil after passing
through the oil cooler.
If the oil temperature is high, then check for a
restriction in the oil passages of the oil cooler. A
restriction in the oil cooler will not cause low oil
pressure in the engine.
Determine if the oil cooler bypass valve is held in the
open position. This condition will allow the oil to pass
through the valve instead of the oil cooler. The oil
temperature will increase.