Direct-injection engines were introduced with a promise that sounded ideal: more power, better fuel efficiency, and cleaner emissions, all from a more precise way of delivering fuel. On paper, the ...

If you ask any modern automotive nerd to name the first vehicle to feature a direct-injection diesel technology, you will likely get one of two answers. The Volkswagen Audi Group loyalist will point ...

Gasoline direct injection, or GDI, is one of the most crucial bits of technology in the modern internal combustion engine. In engines equipped with GDI, highly pressurized gasoline is sprayed directly ...

The basic difference between direct injection (DI) and the port-fuel injection (PFI) systems we've become familiar with since the mid-1980s is that PFI sprays fuel into the intake manifold (behind ...

Not to be confused with hydrogen fuel cells, this hydrogen-powered internal combustion engine made by Chinese company Weichai ...

Removing carbon build up from your direct injection gasoline engine is easier than you might think! I'd always heard that you have to soda or walnut shell blast the valves after removing the intake ...

My terrific auto mechanic retired and sold his business, and I haven't found someone to replace him for my car maintenance.

Until the early 1990s, many gasoline engine designs relied on carburetors to produce the fuel-air mixture needed to make the power that makes a car move. However, as the regulations around fuel ...

Direct injection engines deliver fuel at high pressure directly into the combustion chamber. When the fuel spray strikes surfaces such as the piston crown or liner, a thin liquid film forms. This film ...

Flash boiling occurs when liquid fuel under high pressure enters an environment whose pressure lies below the liquid’s saturation pressure, driving rapid vapour nucleation and explosive atomisation.