We may receive a commission on purchases made from links. I have been working on my own vehicles for almost 40 years and in that time have accumulated a sizable collection of tools. The bulk of them ...

Is your engine underperforming? A Cenex expert shares how a diesel engine compression test could provide the diagnosis. With winter in full swing, fleet owners may be thinking about what they should ...

Diesel engines do their hardest work in the toughest jobs, from highway semis to construction equipment, and the reason they can survive that punishment starts with how fiercely they squeeze the air ...