B5.9G, B5.9LPG – Troubleshooting and Repair Manual – 007-037   Lubricating Oil System

WARNING  To reduce the possibility of personal injury, avoid direct contact of hot oil with your skin.

WARNING  Some state and federal agencies have determined that used engine oil can be carcinogenic and cause reproductive toxicity. Avoid inhalation of vapors, ingestion, and prolonged contact with used engine oil. If not reused, dispose of in accordance with local environmental regulations.

Operate the engine until the coolant temperature reaches 60°C [140°F].

Shut the engine off.

Remove the oil drain plug.

Drain the oil immediately to make sure all the oil and suspended contaminants are removed from the engine.

Use a container with a capacity of at least 23.6 liters [25 qt] of lubricating oil.

Clean and check the lubricating oil drain plug threads and sealing surface.

Install the lubricating oil pan drain plug.

Use a high-quality 15W-40 multiviscosity oil, such as Cummins Premium Blue, or equivalent, in Cummins engines.

Choose the correct oil for your application and climate as outlined in the Operation and Maintenance Manual, or Cummins Engine Oil Recommendations, Bulletin 3810340.

Fill the engine with clean lubricating oil to the proper level.

When filling the oil pan, use the fill tube on the side of the engine rather than on top of the rocker lever cover.

Refer to Section V for lubricating oil pan capacities.

CAUTION  If no oil pressure is noted within 15 seconds after the engine is started, shut down the engine to reduce the possibility of internal damage.

Idle the engine and inspect for leaks at the drain plug.

Shut off the engine.

Wait approximately 10 minutes to let the oil drain from the upper parts of the engine and check the level again.

Add oil as necessary to bring the oil level to the “H” (high)
mark on the dipstick.