Duramax 3.0L Maintenance / Oil Change Information

BoostN

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Oct 10, 2018
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3.0 Duramax LM2:

Oil Capacity
- 7 Quarts

DEF Capacity - 5.3 Gallons


Oil Filter - PF66 / 55495105

Engine Oil - DexosD 0w20 19370138

Fuel Filter - TP1015 / 23304096

Air Filter - A3244C / 84121219



Front Axle Lubricant:

Supplier RPO code SU4
- 10-4091 / 19300457 High Efficiency 75W-85 (AAM)

Supplier RPO code SU5
- 10-4122 / 19368514 Dexron Low Viscosity 75W-85 (GM)



Rear Axle Lubricant:

8.6" axle 3.42 gear
- 10-4091 / 19300457 High Efficiency 75W-85 (AAM)

9.5", Ratio RPO GU5 3.23 gear, Supplier RPO code SU7
- 10-4091 / 19300457 High Efficiency 75W-85 (AAM)

9.5", Ratio RPO GU5 3.23 gear, Supplier RPO code SU8
- 10-4122 / 19368514 Dexron Low Viscosity 75W-85 (GM)

9.5", Ratio RPO GU6 3.42 gear
- 10-4091 / 19300457 High Efficiency 75W-85 (AAM) - With 6 speed auto ONLY. WT/Custom/CustomTB.

9.76" rear axle 3.42 gear
- 10-4091 / 19300457 High Efficiency 75W-85 (AAM)

*Note. Must ID the RPO codes to match proper fluids due to there being two different axle suppliers, GM and AAM.



Fuel Tank Sizes:

Long Box Gas
- 28 Gallons



Brake Fluid:

DOT4
- 10-4086 / 19299570



Front Bulbs (Custom/WT/Custom TB):

Low Beam
- H11

High Beam - 9005

Turn Signal/Marker - W21/5WLL

Fog Lamp - LED



Front Bulbs (LT/LTZ/LT TB/RST):

Low/High Beam
- LED

Turn Signal/Marker - W21/5WLL

Fog Lamp - LED



Front Bulbs (Sierra/SLE/Elevation):

Low/High Beam
- LED

Turn Signal/Marker - 7444NA

Fog Lamp - LED



Front Bulbs (High Country):

Low/High Beam
- LED

Turn Signal/Marker - LED

Fog Lamp - LED



Front Bulbs (AT4/SLT/Denali):

Low/High Beam
- LED

Turn Signal/Marker - LED

Fog Lamp - LED



Rear Bulbs (WT/LT):
Stop/Turn Signal
- 7443

Reverse - W16W

Marker - 194

License Plate - 194



Rear Bulbs (Sierra/SLE/Elevation):
Stop/Turn Signal
- 7443

Reverse - W16W

License Plate - 194



Rear Bulbs (High Country/LTZ/RST/Custom/Custom TB/LT TB)

Stop/Turn/Marker
- LED

Reverse - W16W

License Plate - 194



Rear Bulbs (AT4/SLT/Denali)

Stop/Turn/Marker
- LED

Reverse - LED

License Plate - 194
 
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