Most people pump diesel without thinking about what's in the nozzle, but the stuff has a long journey before it hits your fuel tank. Diesel doesn't magically come out from underground — it's ...

Refining converts mixed crude oil into specification fuels, petrochemical feedstocks, lubricants, and other products by physical separation, chemical conversion, and product treating/blending. It ...

Diesel engines power more than you may realize. While diesel was once considered a useless byproduct of the crude oil refinery process, it's now responsible for powering everything from freight trains ...