The engine bay of an Audi C8 RS6 showcases a prototype Eventuri intake system designed to improve airflow and turbocharged ...

Incomplete gasoline combustion can lead to your car running rough, and in the worst cases, can seriously damage engine ...

Your intake manifold is the heart of your engine’s breathing system, and when it’s clean, sealed, and tuned right, performance and efficiency thrive. From spotting vacuum leaks to knowing when to ...

From above, this two-year-old engine looked spotless. However, the real trouble was lying just out of sight, in places most ...

The future of clean construction equipment power is still evolving. Alternative propulsion for machines like excavators and dozers, which have utilized diesel engines for about 100 years, has centered ...

Scientists are exploring a surprisingly simple way to clean up diesel engines: adding tiny droplets of water to the fuel. During combustion, the water rapidly vaporizes, triggering micro-explosions ...

Carbon buildup on intake valves is a common problem in modern engines, particularly those with direct injection. Over time, oil vapors and combustion byproducts stick to the valves, forming hard ...

Shares of Caterpillar, the maker of mining and construction machinery, are up more than 30% since year-end, making it the biggest contributor to the Dow Jones Industrial Average. WSJ’s Jonathan Weil ...

One of the first things many people do when they want to improve their vehicle's performance is look for bolt-on modifications. These items bolt onto the vehicle, making them easy to remove if you ...

With less regulatory pressure, engines don’t have to get cleaner or more efficient, yet GM CEO Mary Barra insists the company will keep pushing them in that direction anyway. She maintains that GM ...

Hydrogen technologies and a hybridised narrowbody engine are likely to be included in Clean Aviation’s next call for proposals, due to be released in early 2026, although whether flight testing will ...

A new study led by Nigerian researchers suggests a simple ingredient could make diesel engines cleaner: water. By blending precise amounts of water with diesel fuel, scientists have shown that ...