EPA Introduces New Guidelines to Prevent Diesel Truck Power Loss

TL;DR Summary
The EPA is urging truck and engine manufacturers to eliminate sudden power loss caused by low diesel exhaust fluid levels, moving towards more gradual engine derating and software updates to improve reliability for drivers and operators, with new regulations for 2027 and beyond.
- EPA Tells Truck Makers to Stop Forcing Immediate Limp Mode for Low DEF The Drive
- Diesel engine operators can exhale with EPA's new DEF guidance | Opinion The Des Moines Register
- EPA administrator announces power-loss ‘fix’ for diesel exhaust fluid systems KCRG
- EPA announces fix for truckers plagued by speed and power loss caused by diesel exhaust fluid systems CDLLife
- EPA aims to keep diesel trucks on the road FreightWaves
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