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 ...

EVs aren’t as efficient in colder temperatures, but it’s not the end of the world if you plan.

Cold weather slows the chemical process in electric vehicle batteries, reducing their performance and increasing charging times. An EV can lose about 25% of its range in temperatures below 20 degrees, ...