821291 35 Force SCREW (M6 x 35)

The vehicle must be parked on a level surface in order to perform this maintenance procedure.
The oil level gauge markings must be verified. Verify the oil level gauge markings at the first oil change.Verify the "ADD" mark and verify the "FULL" mark that is on the oil level gauge. Use the following procedure:
Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin.
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. The control valve must also be drained on engines that are equipped with a BrakeSaver. Drain the oil from the crankcase for 20 minutes.
Remove the used oil filter(s). Install the new oil filter(s). Install the oil drain plugs and tighten the oil drain plugs to a torque of 70 15 N m (50 11 lb ft).
Table 1
C18 Oil Volumes for Calibrating the Engine Oil Level Gauge    
Engine    "ADD" Mark (1)    "FULL" Mark (1)    ADDITIONAL (2)    TOTAL Fill    
C18 Without BrakeSaver    
26.5 L (28 qt)    
5.7 L (6 qt)    
5.7 L (6 qt)    
37.8 L (40 qt)    
C18 Rear Sump With BrakeSaver    
20.8 L (22 qt)    
5.7 L (6 qt)    
11.3 L (12 qt)    
37.8 L (40 qt)    
C18 Front Sump With BrakeSaver    
34 L (36 qt)    
5.7 L (6 qt)    
9.5 L (10 qt)    
49.2 L (52 qt)    
( 1 ) Calibration is only for standard sumps. Does not include engine oil filters or other system requirements.
( 2 ) Calibration is only for standard equipment. Does not include auxiliary filters. Add 3.7 L (3.9 qt) for engines that are equipped with factory installed dual oil filters.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.
Locate your engine in Table 1. Pour the correct volume of oil into the crankcase. The correct volume will be found under the "ADD Mark" in the Table. 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.
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 the new "ADD" level. Use an engraving pen in order to engrave the new "ADD" mark.
Locate your engine in Table 1. Pour the correct volume of oil into the crankcase. The correct volume will be found under the "FULL Mark" in the Table. Allow enough time for the oil to drain into the crankcase.
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. Use an engraving pen in order to engrave the new "FULL" mark.
Locate your engine in Table 1. Pour the "ADDITIONAL" volume 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.
Stop the engine and allow enough time for the oil to drain into the crankcase.
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 added oil plus the oil from the "TOTAL" column of Table 1 is the total oil capacity of the lubrication system. Record the total oil capacity of the lubrication system for future oil changes.