Running-In Period - MWM MS 3.9L Operation And Maintenance Manual

Running-in Period

During the running-in period, follow these recommendations:
• It is not advisable to operate the engine at light loads for a long time.
• Maximum load: It can be applied to a new engine as soon as it is in operation, since the engine's temperature is in the
ideal operation range.
• Do not operate the engine at high speed without load.
• Do not overload the engine.
• Do not operate the engine with sudden accelerations, during the engine's lifetime.
• Before starting the engine, check its lubricating oil, engine coolant and fuel levels.
• Do not keep the engine idling for warming it. Instead, vary the engine speed.
• Do not keep the engine idling without need.
• Keep the operating temperature between 82 and 98 °C.
Note: The operator is responsible for the correct usage of this product during running-in period. To ignore the
recommendations above mentioned will cause a decrease of the product life duration, with consequent
increase of lubricating oil consumption to higher levels than those ones defined by project.
NP 085.70.69 - 01/06
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