The season is changing and there are telltale signs of colder temps everywhere you look. Sure, the leaves are different and there might be frost on the ground, but I’m really talking about cold start ...

When Arctic air settles in, drivers of diesel pickups and highway fleets learn quickly that not all fuels behave the same. Diesel can thicken into a waxy sludge that starves engines of fuel, while ...

Diesel engines are famous for reliability, longevity, and torque — until winter shows up and reminds them that chemistry still applies. Diesel fuel, which is pricey nowadays, behaves differently in ...