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 ...

We're always looking for ways to make more power without spending too much money. We bolt on carburetors and intake manifolds. We also perform cam swaps in our quest for power. When that doesn't meet ...

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 type ...

A.Here's a pressure-volume diagram for a combustion engine. Although rough, it is an approximation of the so-called air-standard cycle. '' Point (a) is at atmospheric pressure, after which the air is ...

Mazda's hotly anticipated SKYACTIV-X Spark Controlled Compression Ignition engine has been described as the "Holy Grail" of gasoline motors—something with diesel-like fuel economy, but far lower ...

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 ...

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 ...

Although car manufacturers are embracing alternative power sources, they haven't given up on internal combustion just yet. Along with a push towards downsized turbo power, some of the smartest ...

News that Mazda is hoping for a 30% fuel efficiency gain on an HCCI (Homogeneous Charge Compression Ignition) engine to be introduced on the next generation Mazda3 in late 2018 brings this technology ...