Add Yahoo as a preferred source to see more of our stories on Google. The U.S. Environmental Protection Agency, working hand in hand with the U.S. Small Business Administration, is providing relief ...

Diesel exhaust fluid freezes at 12 degrees Fahrenheit, leaving ice road truckers in a dangerous predicament when their big ...

I recently read a pretty startling statistic—in the next year, the off-highway engine market will consume about 20 million gallons of Diesel Exhaust Fluid (DEF). In the next five years that number is ...

Add Yahoo as a preferred source to see more of our stories on Google. (Photo/Ram) Just two weeks ago, the head of the Environmental Protection Agency (EPA) made an extraordinary announcement: ...

DEF is a key component in lowering pollutants emitted from diesel engines, helping to reduce harmful emissions. Long-haul truckers and diesel engine enthusiasts had to rethink their entire operations ...

Wyoming Farm Bureau Federation President Todd Fornstrom testified Wednesday before the U.S. Senate Environment and Public ...

Manufacturers' required DEF derates will soon be less severe. Current equipment may enter limp mode and slow to 5 mph, or stop altogether until a DEF fault is cleared. The EPA's new guidance for ...

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 ...

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 is requiring 14 major diesel engine manufacturers to provide detailed information about diesel exhaust fluid system failures that have affected farmers and truckers ...

GM Duramax diesel DEF tank failures are increasingly popping up in social media and owners are furious about the problems ...