3406E and C15 Marine Engines Caterpillar

The engine is shipped with an engine oil level gauge that is not marked. The engine oil level gauge is not marked because the following features can be different for each engine:

• Angle of the installation

• Side for service

The same two features will affect "ADD" mark (Y) and "FULL" mark (X) that is engraved on the engine oil level gauge.

The engine oil level gauge must be calibrated after the engine is installed in the vessel.

Illustration 1	g00110310
Oil Level Gauge "ADD" mark (Y) and "FULL" mark (X)

1. Operate the engine until normal operating temperature is achieved. Stop the engine. Remove one of the drain plugs for the engine crankcase. Allow the engine oil to drain until the oil pan is completely drained.

2. Remove the used engine oil filter. Install the new engine oil filter. Install the drain plug for the engine crankcase. Tighten the drain plug for the engine crankcase to 70 ± 14 N·m (50 ± 10 lb ft).

   Note: The engine may be equipped with auxiliary engine oil filters. The extra filters require more engine oil than the standard amounts. Refer to the OEM specifications.

3. Add the recommended oil grade and weight of engine oil to the crankcase:

   Standard Sump ... 45.4 L (48 qt)

   Deep Sump ... 64 L (68 qt)

4. Start the engine. Ensure that the lubrication system and the new engine oil filter are filled. Inspect the lubrication system for leaks.

5. Stop the engine and allow the engine oil to drain into the engine crankcase for approximately five minutes.

6. Check the engine oil level. Use a marking pen in order to engrave "ADD" mark (Y) .

7. Add 3.8 liter (4 qt) of the recommended oil grade and weight of engine oil to the crankcase. Full volume will now be 49.2 L (52 qt) for the standard sump, or 68.1 L (72 qt) for the deep sump. Allow the engine oil to drain into the engine crankcase for approximately five minutes.

8. Check the engine oil level. Use a marking pen in order to engrave "FULL" mark (X) .