3500 Generator Set Engines Caterpillar

For temperatures above 0 °C (32 °F), use a SAE 10W nondetergent oil of high quality.

For temperatures below 0 °C (32 °F), use air tool oil.

To maintain the efficiency of the starting motor, flush the starting motor at regular intervals. Pour approximately 0.5 L (0.53 qt) of diesel fuel into the air inlet of the starting motor and operate the starting motor. This procedure will remove the dirt, the water and the mixture of oil from the vanes of the air starting motor.