Some of the most common ways to recognize piston ring failure include excessive oil consumption by the vehicle, noticeably low power during acceleration and excessive amounts of white or grey smoke emanating from the exhaust. As the piston rings control and regulate oil pressure and consumption, an overall loss of power and generally less capable performance may also indicate a piston ring issue.
Piston rings play a vital role in regulating oil, the essential lubricant that keeps all of the moving parts of an engine in working order. As such, worn piston rings must be addressed as soon as possible if the vehicle displays any of the most common signs.
Typically a simple compression test is the best way to find out if the piston rings need replacing.