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January 7, 2022 Service bulletin

This informational bulletin provides information on 6.6L Duramax Possible Oil Leak Path Information.

Chevrolet technical service bulletin 18NA150 for 2022 Chevrolet Malibu, 2017-2019, 2021-2022 Chevrolet Silverado 1500 and 2022 Chevrolet Tahoe and others.

Bulletin number
18NA150
Component
Engine and engine cooling: engine: oil/lubrication
Summary
This informational bulletin provides information on 6.6L Duramax Possible Oil Leak Path Information.

Owners of these vehicles have filed 3,089 complaints in the engine category.

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