Porsche's new patented six stroke engine might not be a thing of reality yet, but the new technology is still very ...

A four-stroke engine requires the piston to travel four times to complete a full ignition and exhaust cycle. Due to the additional parts required for this operation, these engines are bulkier but ...

[Huib Visser] built this glass cylinder four-stroke engine and he took great care to make it beautiful. We don’t need our projects to be polished and gleaming, but we have to admit that this the ...

The crankshaft rotates, and that's what powers the parts that move the car's wheels ... Popular Synthetic Oil Brands Ranked Worst To Best A four-stroke engine uses four motions of a piston ...