Every car engine has quite a few details, ranging from cylinder count to compression ratios. How does changing the compression ratio affect the engine?

Trucking keeps the world moving by delivering goods every day of the year. Drivers spend long hours on the road to make sure ...

Freightliner and Western Star models will offer a broader mix of gasoline, diesel and natural gas engines designed to meet EPA 2027 emissions standards.

Could two of BMW's everyday diesel sedans be capable of embarrassing a flagship M3 in a certain performance situation? Period ...

X15 diesels showed quick throttle response and strong acceleration on the TRC's tracks. Engine brakes were impressively strong, even at low rpm's. A parade of X15-powered tractor-trailers led the ...

Not too long ago, Hyundai didn’t compete directly with anything coming out of Germany (or perhaps that’s the other way around). Now Hyundai is determined not to let up on its recently-made foes. Today ...

Golf balls have dimples, so they fly farther than balls that don't. Apply the same principle to diesel engines, and you have a gross oversimplification of why dimpled pistons were invented. It's a ...

The 7.3 Power Stroke turbodiesel has become an iconic engine that's considered by some to have heavily influenced diesel design. The 1994 Ford Super Duty was the first to showcase the 7.3-liter Power ...

Detroit’s sixth-gen lineup features updated DD13, DD15, and DD16 engines that add an SCR pre-treatment of exhaust gas prior to the principle aftertreatment system. The goal is to meet EPA's 2027 ...

Owning a Cummins-powered rig is already a flex. That deep, rumbling idle. The way the turbo whistles when you roll into the throttle. The satisfying grunt as it effortlessly tows what would make most ...

Diesel engines are renowned for their power and fuel efficiency, but cold weather can pose significant challenges to their operation. Many diesel owners wonder if starting their engines in cold ...