The feds aren't scrapping DEF altogether, but this could potentially address a large portion of emissions system failures.

Diesel engines across agriculture, trucking and construction have been sidelined by a tiny part that was supposed to keep the ...

Water and diesel fuel don't mix. Although all diesel grades contain a minuscule percentage of water from the refinery, moisture in the diesel tank won't cause problems until the water content reaches ...

Diesel-powered vehicles require diesel exhaust fluid to reduce engine emissions, making them less harmful to the environment ...

Switching from a gasoline engine to a diesel-powered setup is an enticing possibility, but it requires a lot more work than ...