After wiring fixes, new ECUs, and a mild nitrous setup, Cleetus McFarland’s twin-engine truck now makes 410 horsepower and ...

Discover the impressive capabilities of a uniquely modified Chevy Colorado equipped with a supercharged LS9 engine delivering 1,000 horsepower and an added shot of nitrous. This rare, one-of-one ZR1 ...

EPA officials say additional action regarding DEF is planned. The agency will be issuing a new deregulatory proposal ...

The transition to CL-4 oils is expected to be backward-compatible, but FB-4 use may depend on OEM approvals for specific ...

A recent EPA reference mixed up NOx and nitrous oxide. It’s an easy mistake. Just not one you expect to see in emissions ...

The Environmental Protection Agency on Friday issued guidance to diesel equipment manufacturers saying they no longer need to ...

Multiple cans of nitrous oxide, commonly known as “whippets,” were found outside Dartmouth High School on Wednesday morning, prompting a warning from police on the drug’s modern-day resurgence. “The ...

Governor Bob Ferguson signed legislation Tuesday banning the retail sale of nitrous oxide products in Washington state, with the law set to take effect this summer. The ban targets convenience stores ...

PORTLAND, Ore. — Washington state is poised to become the second state in the nation to ban the retail sale of nitrous oxide, after the state legislature passed House Bill 2532. The bill now heads to ...

A bill (SB 432) that would prohibit the over-the-counter sales of nitrous oxide in Florida is on its way to the governor’s desk. Nitrous oxide, also known as “laughing gas” and colloquially as ...

The rotary was the most radical rethink of the combustion engine in over a hundred years — and it paid the price for being different. Mazda introduced the innovative Wankel rotary engine in the 1967 ...

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 ...