HOLLY, Mich., April 16, 2025 (GLOBE NEWSWIRE) -- A diesel truck, car or SUV that is losing power and fuel economy, shutting down unexpectedly, and/or has a DEF warning light illuminated is probably ...

Most diesel truck owners understand how to put diesel exhaust fluid (DEF) in their trucks. However, some make the mistake of getting DEF in their fuel tank instead of the dedicated DEF tank. As the ...

The Environmental Protection Agency on Tuesday announced a "fix" to "protect American farmers, truckers, and other diesel equipment operators from sudden speed and power losses caused by diesel ...

U.S. Environmental Protection Agency (EPA) Administrator Lee Zeldin on Tuesday urged engine and equipment manufacturers to revise system software to prevent sudden loss of power from engine derates ...

If you’ve had your diesel RV or tow vehicle suddenly lose power because of a DEF (diesel exhaust fluid) issue, you’re not alone. And now, the EPA is stepping in with changes that address this problem.

The news from the Environmental Protection Agency concerning aftertreatment system faults in heavy-duty diesel trucks Tuesday this week, as previously reported, urged software updates to processes for ...

The Environmental Protection Agency announced it is taking actions to ease the frustration and disruptions around sudden “derates” of diesel engines when they run out of diesel exhaust fluid or have a ...

The U.S. Environmental Protection Agency (EPA) issued new guidance to engine manufacturers on Aug. 12 regarding diesel exhaust fluid (DEF) systems to prevent unnecessary engine shutdowns and power ...

Environmental Protection Agency (EPA) Administrator Lee Zeldin has announced plans to eliminate restrictions placed on diesel-equipped vehicles when they run out of diesel exhaust fluid (DEF).