Hi,

I live in Northern New Jersey. In the winter it can be bitter cold. I heard that the most engine wear and tear happens when starting your car cold because it takes split second (or few) for oil to warm up and reach all parts of engine.

Someone recommended me engine block heaters.

Can you please tell me if it is good to get them and how do they work (i.e. what they do and how you use them).

Thank you.