Today's diesel fuel lacks much of the natural lubricity that diesel fuels once offered, taking a potential toll on fuel ...

At this stage, it's looking more and more like only rich people can afford gas, and the situation is even worse if you need to fill up with diesel. The cost of diesel fuel rose above $5 per gallon in ...

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 ...

We're used to seeing different grades of gasoline, but there are also numerous blends of diesel. Here are the differences ...

Similar to gasoline that comes in regular, the somewhat pointless mid-grade, and additive-rich, Top Tier premium blends, diesel fuel comes in different types and grades. Regular diesel (also referred ...