MAINTENANCE AND LUBRICATION 243 ENGINE OIL LEVEL CHECK As the operator of this vehicle, it is important for you to perform the daily inspections necessary to keep your truck in good shape. Maintaining the proper oil level in your engine crankcase cannot be overemphasized. Before checking the oil, remember these important points: • Measurement of the oil level must be taken on level ground. • The best time to check oil level is while the engine is COLD (prior to starting at the beginning of the work day, or after the vehicle has sat approximately 2 hours). At normal operating temperature (engine oil temperature above 79.4°C [175°F]), oil level can be checked 15 minutes after shut down.
CAUTION Failure to wait a sufficient amount of time (2 hours if engine oil temperature is below 79.4°C [175°F]) or 15 minutes if oil temperature is above 79.4°C [175°F]) will result in an inaccurate dipstick reading.
• The level must be close to the FULL line (at least between the ADD and FULL lines) on the dipstick, but must NOT exceed the FULL line (refer to illustration below).
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