If you ever had a diesel car, you know that it’s more fuel efficient than the gasoline counterpart. That’s because diesel engines use compression to ignite the fuel, and gasoline engines use a spark to do that. Practically, diesel engines could work without any electricity – at all.

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General Motors is one of the most trusted and most well-known car manufacturers not only in the United States but in the entire world. It has been doing its share to help our environment be clean and to go green, it has already gone through with the production of green vehicles. But that is not [...]

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