PACCAR Is Raising the DEF Limp-Mode Speed From 5 MPH to 25 MPH. It Is Part of the Biggest Rollback of Diesel Emissions Enforcement in Years.

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PACCAR Is Raising the DEF Limp-Mode Speed From 5 MPH to 25 MPH. It Is Part of the Biggest Rollback of Diesel Emissions Enforcement in Years.

AI Summary

PACCAR is increasing the DEF limp-mode speed from 5 MPH to 25 MPH, representing a significant rollback in diesel emissions enforcement. This update aims to reduce the frequency of truck breakdowns caused by emissions system issues in the United States.

For any owner-operator who has ever been stranded on the shoulder of an interstate at 5 miles per hour because a sensor decided the diesel exhaust fluid system had a problem, the announcement PACCAR made on July 6, 2026 will read like overdue relief. The company is rolling out updated software for trucks equipped with […] The post PACCAR Is Raising the DEF Limp-Mode Speed From 5 MPH to 25 MPH. It Is Part of the Biggest Rollback of Diesel Emissions Enforcement in Years. appeared first on FreightWaves.

Politics Markets Energy PACCAR diesel emissions rollback DEF limp-mode transportation United States

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