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The DEF Debacle: The Rise of “Deleting” and Warranty Wars

by: Western Justice Legislative Fund News DeskPublished on: 06/07/2026

DEF requirements were supposed to deliver cleaner air through Selective Catalytic Reduction (SCR) systems. In reality, they have created a cascade of failures—faulty sensors, sudden derates, shutdowns, and skyrocketing maintenance costs.

GovernmentPolicyEnergyEnvironment
The DEF Debacle: The Rise of “Deleting” and Warranty Wars

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