Step-by-Step Oil Change Instructions for the 3.0l Duramax Diesel LM2 & LZ0
- Raise and support the vehicle if necessary
- Place drain pan under the vehicle.
- Remove the drain plug, 15mm drain plug. This has an o-ring on it and you will need to inspect it and replace if necessary
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Remove the Oil Filter and dispose of it properly
- New Oil Filter (OEM equipped with ACDelco PF66)
- Install the drain plug, torque to 18 ft lbs
- Lubricate the new oil filter with clean engine oil and install. Tighten the filter 3/4-1 full turn after the o-ring contacts the sealing surface.
- Lower the vehicle back down if needed.
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Fill the engine oil to the proper level with new engine oil (7 Quarts)
- Engine oil (OEM filled with ACDelco Dexos D 0w-20 Oil 10-9277)
- Check Oil Level to verify.
- Start the vehicle and inspect for leaks.
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Reset the service interval indicator.
- scroll the information pages until you see oil life and hold down the enter button to reset.
- If you do not see oil life you may need to go to settings and add the oil life page.
For a step-by-step video, see below: