An extension cord hanging from the hood connects to an engine block heater that warms your engine on freezing mornings before turning the key.

When winter temperatures plunge, many diesel truck owners make starting their vehicles easier with a block heater. But when, exactly, should you use it?

We may receive a commission on purchases made from links. An engine is a complex assortment of components all working together to generate power. However, without fluids such as coolant and oil, the ...

GM Authority is taking a closer look at how an engine block heater works, while outlining how it can improve cold-weather ...

We may receive a commission on purchases made from links. Diesel engines, known for their great fuel efficiency, are sensitive to cold temperatures. Instead of using spark plugs, as gasoline-powered ...