Can stuck piston rings be restored without teardown? A 500,000-mile Valvoline engine test shows how deposit removal may ...

How can you tell it's time for a compression test? Common signs include rough starts, unstable idling, and increased oil ...

Bernie Collins, the former McLaren and Aston Martin figure turned Sky F1 pundit, highlighted a discrepancy between the upcoming hot compression ratio test, and actual engine temperatures. The new ‘hot ...

For space fans, the past few days have been a cavalcade of awe and imagery as the Artemis II crew heads back to Earth after swinging around the moon. It's a significant accomplishment that saw the ...

Infiniti's new VC-T is groundbreaking in that it now offers an engine with a variable compression ratio, meaning it can be driven with fuel economy or horsepower in mind, giving the driver the option.

North Korea’s leader, Kim Jong Un, watched a ground test of a solid-fuel missile engine and saw new tanks put through their paces recently, the country’s official news agency reported Sunday. The ...

SEOUL, South Korea (AP) — North Korean leader Kim Jong Un observed a test of an upgraded solid-fuel engine for weapons capable of reaching the U.S. mainland, and called it a significant development ...

Solid-fuel technology seen as harder to detect and deploy North Korean leader Kim Jong Un inspecting a combustion test of a solid-fuel rocket engine at an undisclosed location in North Korea. KCNA/AFP ...

This undated photo provided on March 29, 2026 by the North Korean government, shows what it says a solid-fuel engine test at an undisclosed place in North Korea. Independent journalists were not given ...