Power Tech Generators PTI-25 Operation & Maintenance Manual page 22

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 CJ-4 or higher.
The type of engine oil required changes according to the ambient temperature. Refer to the Engine
Oil Viscosity Table below to determine the oil viscosity for engine operation at the ambient
temperature range that is anticipated.
Above 86°F (30°C)
5° to 86° F (-15°C to 30°C)
Below 5°F (-15°C)
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
!
DANGER
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.
E O M
NGINE IL AINTENANCE
SAE 10W-40 or 15W-40
SAE 10W-30 or 10W-40 or 15W-40
SAE 10W-30 or 10W-40
!
WARNING
Hot Engine and Exhaust System
Can cause severe injury or death.
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