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March 6, 2025 Service bulletin

If oil dilution is suspected refer to the applicable CBR solution below: ∙ CBR-659􀁡Mack Chassis

Mack technical service bulletin CBR-561 202503 for 2016-2026 Mack Anthem (An), 2019-2025 Mack Granite (GR) and 2011-2018 Mack Cxu and others.

Bulletin number
CBR-561 202503
Component
Engine
Summary
If oil dilution is suspected refer to the applicable CBR solution below: ∙ CBR-659􀁡Mack Chassis - Oil Diluted With Fuel; Fuel In Oil, Diagnostic Information - All Emissions, All Model Years

Owners of these vehicles have filed 2 complaints in the engine category.

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