Diesel engines can deliver years of reliable service if you understand their needs and follow a preventive maintenance plan. From compression testing to adjusting service intervals for severe ...

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 ...

The same solution for very different reasons.

In preparation for joining the U.S. Navy fleet, the USS Patrick Gallagher (DDG-127) has ...

The AJ Foyt Racing driver (photo) was one of just two competitors to top 226 mph during the two-day test preparing drivers ...