You've heard that pistons have rings, but have you ever wondered why there are three? Here's how piston rings work together ...

There's no need to sugarcoat what bad piston rings can do to your engine. Those rather thin cast-iron or steel rings may look small and irrelevant to untrained eyes, but they play a vital part in ...

A class action suit filed against Subaru alleges some models burn too much oil as a result of an engine defect. (Associated Press file photo) Five models of Subarus have a defect that can lead to ...

Here you can see basic piston terminology, including major and minor thrust locations. Of particular note is the fact that piston pin offset can be used to counteract combustion pressures on the ...

Pistons reciprocate inside the cylinders of an internal combustion engine. The outer diameter of the piston is slightly smaller than that of the cylinder liner, enabling it to move up and down with ...

If you’re like many of us, you don’t spend a lot of time thinking about the pistons in your engine. Most of the time you don’t need to, but there are times when burnt, scuffed, or cracked pistons need ...

If asked what you wanted for piston rings in your engine build, would you know how to answer? Piston rings have the most important job in your engine. We will get arguments on this one because there ...