Slowly increasing availability of unleaded avgas is among the market developments for piston-engine airplanes.

Diesel engines have pistons that look different from the ones you'd see with a gas engine. There's a reason why that's the ...

By arranging oval cylinders closer together and requiring less offset between banks, Ferrari could significantly reduce the ...

Inside of almost every modern internal combustion engine (ICE) are pistons, which move up and down inside of cylinders. These move up and down to spin the crankshaft. The crankshaft is then connected ...

Kia says that there was a "quality deviation" at the Kia Autoland Hwaseong plant that manufactured the oil rings. Over time, the piston ring can damage the cylinder wall. This can lead to excess oil ...

According to the recall report, the defective piston rings can score the engine’s cylinder walls and cause an increase in oil consumption. The notice also notes that this increase in oil ...

The recall documents show that Kia will inspect each engine, replacing those with damaged cylinder walls. The dealers will also install piston-ring noise-sensing software as a preventive measure.

recesses along the longitudinal skirt of each piston could help reduce friction against the cylinder walls, reducing internal friction and increasing efficiency, potentially helping the engine ...