Do diesel fuel additives really work, or are they just expensive snake oil? With diesel prices remaining painfully high, improving fuel economy, reducing regens and protecting expensive emissions ...

Most diesel engines in the U.S. use a combination of technologies to reduce emissions. Usually there will be a diesel particulate filter (DPF), selective catalytic reduction (SCR) with urea (DEF fluid ...

Is your diesel truck struggling with poor engine performance, sluggish acceleration or reduced fuel economy? You might have a problem with your exhaust gas recirculation system. That might seem like a ...