Cummins ISX11.9 CM2250 – Service Manual 007-013   Lubricating Oil Filter (Spin-On)

A combination oil filter is present on the engine. The upper portion of the combination filter contains the full-flow filter element, while the lower portion contains the bypass filter element.

The venturi design has been optimized to distribute oil flow during normal engine operation; however, during extreme engine oil conditions (additive dropout, contamination, soot etc.) the improvements increase the overall filtration effectiveness.

Oil circulates through the full-flow portion of the filter, into the oil cooler housing, and is directed to the engine oil rifles.

A smaller portion of the oil circulates through the lower bypass portion of the filter and is directed to the engine oil rifles.

Use Valvoline™ Premium Blue™ 15W-40 multiviscosity oil, or its equivalent, which meets CES 20078 and CES 20081 oil classifications for turbocharged engines.

Refer to Cummins® Engine Oil and Oil Analysis Recommendations, Bulletin 3810340, for additional oil information.

CAUTION  Limited use of oils such as 5W-30 or 10W-30 can aid in starting the engine and providing sufficient oil flow at ambient temperatures below -5°C [23°F]. However, the continuous use of low-viscosity oils can decrease engine life.

See the accompanying chart to determine the best weight of oil for the engine operating conditions.

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.

Use oil filter wrench, Part Number 3375049, 3397929, or 3400157 to remove the oil filter.

NOTE: The o-ring can stick to the filter head. Make sure it is removed before installing a new filter.

Clean the oil filter head surface.

Use clean engine oil to lubricate the gasket surface of the filter.

CAUTION  Mechanical overtightening can distort the threads or damage the filter element seal.

Fill the oil filter with clean 15W-40 oil.

Install the oil filter onto the oil filter head. Tighten the filter until the gasket contacts the filter head surface.

Use oil filter wrench, Part Number 3375049, 3397929, or 3400157 to tighten the filter an additional 3/4 to 1 turn, or follow the instructions supplied with the filter.

Confirm that the oil level in the pan is to the full mark.

Operate the engine until the water temperature reaches 82°C [180°F].

Check the oil pressure and for leaks.