If you've never heard of EGT (Exhaust Gas Temperature), don't feel bad. You're not losing points in Diesel Owners Club 101. But you should know it. There's more to that smoke coming out of your ...

This is the kind of question where we'd better talk about terms before answering it. That's because AdBlue is a brand name for what folks in the United States usually call diesel exhaust fluid — aka ...

Diesel Exhaust Fluid (DEF) is a crucial component in modern diesel vehicles, introduced to comply with US Environmental Protection Agency (EPA) regulations that began in 2010. It's a solution made up ...