Let's discuss something that is well known by diesel mechanics and hard-core enthusiasts but may not be fully understood by new diesel owners or people who may have heard the term "compression ...

A fundamental difference between gasoline and diesel engines is that a gasoline engine uses spark ignition while a diesel engine uses compression ignition. Before we delve deeper, let's understand how ...

What many consider the Holy Grail of combustion technology is one step closer to prime time. In the race to field energy-efficient vehicles, don’t count out internal combustion technology just yet. GM ...

Hyundai today revealed that it is currently testing a new compression-ignition gasoline engine that is expected to be more efficient than an equivalent diesel. The new Hyundai 1.8-liter inline-four ...

Any certified gearhead knows that diesel engines do not use spark plugs. But why not? If power in an engine is created by combustion or explosion of flammable liquids, won't a spark plug in a diesel ...

SAE Transactions, Vol. 105, Section 3: JOURNAL OF ENGINES (1996), pp. 1022-1030 (9 pages) Burning natural gas in a direct injection diesel engine, requires a special arrangement to secure ignition. In ...

General Motors will display an advanced technology compression ignition engine at its Milford Proving Grounds in Michigan today. The engine is a peek at new internal combustion engine developments at ...

Car manufacturers are delving deep into their boxes of tricks to make internal combustion engines more efficient. Infiniti unveiled a variable compression ratio engine last year, and hybrid technology ...

IRVINE, Calif.—Despite rumors to the contrary, the internal combustion engine is far from dead. Recently we've seen several technological advances that will significantly boost the efficiency of ...

You own a diesel-powered vehicle and are thinking of giving it a tuneup. But does your diesel even have spark plugs to change? The short answer is no, diesel engines do not have spark plugs. Instead, ...

Mazda’s new SkyActiv-X engine will go against every convention you thought you understood about gasoline engines. It’s supercharged, but for efficiency purposes, not to increase power. It has a ...