How should piston ring gaps be positioned relative to each other?

Piston ring gaps should be staggered to prevent alignment. This positioning is critical because when the gaps of the piston rings are aligned, it creates a potential for increased blow-by, which is the escape of combustion gases past the rings into the crankcase. By staggering the gaps, each ring can effectively support the others in maintaining a seal and preventing exhaust gases from leaking. This configuration also ensures that any gaps do not line up in a way that would allow for a direct passage for gases, thereby maintaining better compression and overall engine efficiency. The staggered arrangement contributes to uniform wear of the rings and helps to optimize engine performance by enhancing oil control and reducing emissions.