In this video, we're doing a detailed comparison of petrol, or spark ignition, and diesel, or compression ignition engines.

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 ...

Most pickup trucks sold today have internal combustion engines. Passenger vehicles are powered by two main types of engines: compression, aka diesel, and spark ignition, aka gasoline. Besides the ...

A Reactivity Controlled Compression Ignition engine can achieve 60 percent thermal efficiency. That's incredible.

Gasoline and diesel engines work on similar principles, but there are some important differences, including the fact that diesel engines don't need spark plugs.

A homogeneous charge compression ignition (HCCI) gasoline engine has been something of a holy grail for internal combustion engineers for decades, promising the fuel economy of diesel engines but ...

Compression ignition is how diesel engines run. A diesel sprays fuel and highly compressed hot air into the combustion chamber to induce an explosion, rather than igniting the fuel-air mixture ...

Unlike spark-ignition gas engines or compression-ignition diesel engines that have a combustion process characterized by growth of a flame front from a single point in the combustion chamber, HCCI ...

Well that’s exactly what Mazda has done. In the ranges where compression-ignition isn’t possible, the SkyActiv-X engine runs like any other gasoline engine.

Diesel engines have pistons that look different from the ones you'd see with a gas engine. There's a reason why that's the case, and it's all about performance.

Yes, diesels last longer than gas engines, but it's mainly due to its manufacturing. A typical diesel engine is bigger, heavier, and has sturdier components to withstand the higher compression ratios.

Some engines use a spark to ignite their fuel, and others rely on compression. What does all of that mean? And how do the two kinds of engines differ?