Under certain conditions, the water in DEF can evaporate, leaving behind white crystal urea deposits. Over time, these crystals can build up, clogging system components and interfering with normal ...
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 ...
The EPA’s war on the dreaded diesel “limp mode” triggered by DEF systems just shifted into a much higher gear. While the initial focus centered on cleaning up the software for the 2027 model year and ...
The U.S. Environmental Protection Agency (EPA) is escalating its response to consumer complaints regarding Diesel Exhaust Fluid (DEF) system failures, announcing a new investigation aimed at major ...
The data collected will allow EPA to independently evaluate ongoing system failures. As of Feb. 2, engine manufacturers have 30 days to provide EPA with data on model years 2016, 2019 and 2023 ...
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