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

Toyota recommends 87 octane for the 2025 Prius, but one owner hit 61.1 MPG using 91 premium. We analyze Jason Black’s ...

Volvo's Modular engine officially entered production at the beginning of the 1990s, but its roots stretch much further back ...

Taking inspiration from the Infiniti FX pays dividends for the new QX65's head-turning style, but there's a problem ...

Rolls-Royce and easyJet have completed ground testing of a modified Pearl 15 engine running on 100% hydrogen at full takeoff ...

Aston Martin’s ambitions are clashing with shortcomings in the power unit and severe vibrations, which are causing ...

After two years of teasers, the twin-turbo Demon 1700 has a final number, and it arrives only on the right fuel ...

The Dreyer & Reinbold Racing driver (photo) was one of two competitors to top 225 mph Tuesday on the 2.5-mile Indianapolis ...

Parts used in aircraft engines, power plants, and other high-temperature machines must survive extreme stress for long ...