Piston rings are small engine parts with a big job. They seal combustion pressure, control oil on the cylinder wall, help ...

The effects of PCV failure are especially noticeable in turbocharged engines, where crankcase ventilation becomes critical ...

Minor engine symptoms often look harmless, yet they are usually the first sign that something inside the powertrain is wearing out, clogging up, or running too hot. When we ignore those early clues, ...

Today's engines are more advanced than ever before, offering large horsepower numbers from small displacement engines. Seemingly, manufacturers have combined the best of both worlds: small economic ...

There's more to piston shapes than you might think. Whether it's domed, flat, or dished, all pistons have their fair share of pros and cons when it comes to performance and efficiency. Understand that ...