You can save real money on fuel by switching from diesel to a modern hybrid—often […] ...

Detroit's DD13, DD15, and DD16 engines get a pre-SCR boost, 3% fuel-efficiency gains, and familiar service intervals as Daimler prepares for trucking's next emissions era.

It's paradise for brainboxes in Bahrain. And smokescreens and mirrors along the pit lane, in keeping with the oldest of F1 ...

Aston Martin's problems are clear, even if F1's 2026 pecking order remains foggy. Here are the main takeaways from Day 1 ...

A simmering technical row in Formula 1 is hurtling toward a decisive moment, as the sport’s five engine manufacturers prepare to cast votes.

The FIA has proposed a new approach to the way it tests for compression ratio limits, with Formula 1's power unit manufacturers to vote on whether to approve a mid-season change that could hamper ...

The compression ratio controversy will be addressed with a new test, but not until August.

A political firestorm has been brewing in Formula 1 in recent weeks and months over whether engine manufacturers have found a loophole in the new 2026 technical regulations.

Upping the Ante for Green Hydrogen Production Still think hydrogen hubs are a pipe dream? Not anymore. Out at Klaipėda Port, ...

The INNengine e-Rex is described as a one-stroke engine, though it actually has two strokes. But it's not dirty like traditional two-strokes.

Apart from the very curious, not many people ask why diesel engines, compared to gasoline, run higher compression ratios. The argument is reasonably straightforward and starts with fuel ...