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ENGINE OIL MAINTENANCE
High quality engine oil is crucial to reliable operation and increased life expectancy of the generator set.
Engine oil provides lubrication and cooling to the internal components of the engine.
Lubricating Oil Specifications
It is important to use a high quality, multi-grade engine oil designed for diesel engines. Engine oil should
meet API classification of CF or higher.
The type of engine oil required changes according to the ambient temperature. Refer to the Engine Oil
Viscosity Table below in order to determine the oil viscosity for engine operation at the ambient
temperature range that is anticipated.
Above 77°F (25°C) SAE 10W-30 or 10W-40 or 15W-40
14° to 77° F (-10°C to 25°C) SAE 10W-30 or 10W-40 or 15W-40
Below 14°F (-10°C) SAE 10W-30 or 10W-40
Note: The factory uses and recommends the use of a high-quality SAE 15W-40 diesel engine oil.
NOTICE: The use of low quality, incorrect viscosity, and/or oils not designed for diesel engine
applications may result in increased engine wear or engine seizure. Damage caused by using incorrect
engine oil is not covered under warranty.
Checking the Engine Oil Level
Moving Parts.
Will cause severe injury or death.
During operation, some parts of the generator set can become extremely hot. To avoid
burns, allow the engine to cool sufficiently before checking the engine oil.
Always stop the engine before checking the engine oil. DO NOT check the engine oil while
the engine is running.
Always put the generator set in OFF mode before checking the oil. If the generator set is in
AUTO mode, the generator set may start automatically, without warning.
Hot Engine and Exhaust System
Can cause severe injury or death.
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