Excessive Oil Consumption on C13 Truck Engines{1302, 1326, 1902, 7620} Caterpillar

Engine:

C13 (S/N: KCB1-81304)

Introduction

Do not perform any procedure in this Special Instruction until you read this information and you understand this information. Be aware. This Special Instruction has procedures for two different types of oil pans. Make sure that the correct procedure is followed for the proper oil pan. Refer to Procedure ""Solution for a Standard Deep Oil Pan" " for engines with a deep oil pan. The deep oil pan has an overall height of 335 mm (13.2 inch). Refer to Procedure ""Solution for a Shallow Oil Pan" " for engines with a shallow oil pan. The shallow oil pan has an overall height of 278 mm (10.9 inch) or 167 mm (6.6 inch).

Problem

Some C13 Truck Engines have been having some issues with excessive oil consumption. Follow the steps below in order to resolve the excessive oil consumption.

Solution

Follow the steps below during the next regular oil change.

Solution for a Standard Deep Oil Pan

The vehicle must be parked on a level surface in order to perform this maintenance procedure.

First Procedure

1. Operate the engine until normal operating temperature is achieved. Stop the engine. Remove the crankcase oil drain plugs. The oil drain plug from the deep portion of the oil pan should be removed. The oil drain plug from the shallow portion of the oil pan should be removed. This will allow all of the oil to drain. Drain the oil from the crankcase for 20 minutes.

2. Remove the used oil filters. Install the new oil filters. Install the oil drain plugs and tighten to 70 ± 15 N·m (51 ± 11 lb ft).

   Note: Your engine may be equipped with auxiliary oil filters. The auxiliary oil filters require a different volume of oil. Refer to the OEM specifications for information on the auxiliary oil filters.

3. Pour 28.4 L (30.01 qt) of oil into the crankcase. Allow enough time for the oil to drain into the crankcase. Approximately 20 minutes should be allowed. Check the oil level. Wait for several minutes and check the oil level again. Proceed after the oil level stops changing.

4. Check the oil level on the oil level gauge. The oil level should be at the "ADD" mark. If the oil level is not at the existing "ADD" mark, grind off the "ADD" mark and engrave a new "ADD" mark. Use an engraving pen in order to make the new mark.

5. Pour 5.7 L (6 qt) of oil into the crankcase. Allow enough time for the oil to drain into the crankcase.

6. Check the oil level on the oil level gauge. The oil level should be at the "FULL" mark. If the oil level is not at the existing "FULL" mark, grind off the "FULL" mark and engrave a new "Full" mark. Use an engraving pen to make the new mark.

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NOTICE
Do not crank the engine for more than 30 seconds. Allow the starting motor to cool for two minutes before cranking again.

7. Pour an additional 3.8 L (4 qt) of oil into the crankcase. Start the engine and run the engine enough to ensure that the lubrication system is filled. Inspect the engine for oil leaks.

8. Stop the engine and allow enough time for the oil to drain into the crankcase.

9. Check the oil level on the oil level gauge. If the oil level is not at the calibrated "FULL" mark, fill the crankcase to the calibrated "FULL" mark. Record the amount of oil that was added. The additional oil and the 37.9 L (40 qt) of oil that was in the crankcase is the oil capacity of the lubrication system. Record the oil capacity of the lubrication system for future oil changes.

Second Procedure

1. Flash the engine ECM with new software (to 295-XXXX or later, according to the correct rating) if the serial number is between (S/N: KCB5434-72869). Refer to Table 1 for the proper software file.

Solution for a Shallow Oil Pan

The vehicle must be parked on a level surface in order to perform this maintenance procedure.

First Procedure

1. Operate the engine until normal operating temperature is achieved. Stop the engine. Remove the crankcase oil drain plugs. The oil drain plug from the deep portion of the oil pan should be removed. The oil drain plug from the shallow portion of the oil pan should be removed. This will allow all of the oil to drain. Drain the oil from the crankcase for 20 minutes.

2. Remove the used oil filters. Install the new oil filters. Install the oil drain plugs and tighten to 70 ± 15 N·m (51 ± 11 lb ft).

   Note: Your engine may be equipped with auxiliary oil filters. The auxiliary oil filters require a different volume of oil. Refer to the OEM specifications for information on the auxiliary oil filters.

3. Pour 22.7 L (24 qt) of oil into the crankcase. Allow enough time for the oil to drain into the crankcase. Approximately 20 minutes should be allowed. Check the oil level. Wait for several minutes and check the oil level again. Proceed after the oil level stops changing.

4. Check the oil level on the oil level gauge. The oil level should be at the "ADD" mark. If the oil level is not at the existing "ADD" mark, grind off the "ADD" mark and engrave a new "ADD" mark. Use an engraving pen to make the new mark.

5. Pour 5.7 L (6 qt) of oil into the crankcase. Allow enough time for the oil to drain into the crankcase.

6. Check the oil level on the oil level gauge. The oil level should be at the "FULL" mark. If the oil level is not at the existing "FULL" mark, grind off the "FULL" mark and engrave a new "FULL" mark. Use an engraving pen in order to make the new mark.

7. Pour an additional 3.8 L (4 qt) of oil into the crankcase. Start the engine and run the engine enough to ensure that the lubrication system is filled. Inspect the engine for oil leaks.

8. Stop the engine and allow enough time for the oil to drain into the crankcase.

9. Check the oil level on the oil level gauge. If the oil level is not at the calibrated "FULL" mark, fill the crankcase to the calibrated "FULL" mark. Record the amount of oil that was added. The additional oil and the 32.2 L (34 qt) of oil that was in the crankcase is the oil capacity of the lubrication system. Record the oil capacity of the lubrication system for future oil changes.

Second Procedure

1. Flash the engine ECM with new software (to 295-XXXX or later, according to the correct rating) if the serial number is between (S/N: KCB5434-72869). Refer to Table 1 for the proper software file.