Fox News correspondent Jeff Paul opened his report with a picture that felt upside-down: a 65-year-old diesel mechanic, Troy ...

Diesel Exhaust Fluid has an expiration date, after which it becomes far less effective and can even damage your engine.

CVSA's letter to FMCSA suggested withholding the bar for ELP compliance from truckers was a big barrier to increasing ...

Diesel engines are more complex than petrol when it comes to managing the pollutants, resulting in higher level of pollutant ...