It used to be simple; to save money on fuel, you bought a diesel. But diesel’s decline means that now you choose a hybrid: an ...

An electronics technician modified a vehicle engine system so it can run with water used as an additive to diesel.

For the sake of argument, let's say you're building a 700-hp street car. What would the perfect fuel system be if you could have anything you wanted? At the top of our wish list would be easy to ...

Having fuel injectors on all mass-produced vehicles is one of the biggest automotive breakthroughs of the past few decades. If you've ever gone through having to start an engine with a poorly tuned ...

Your engine feels calm at a stoplight because a hidden idle system keeps fuel, air, and spark in balance. That quiet stability is not luck, it is the result of sensors, valves, and software working ...