2011 Mazda MX-5 Miata - Piston Rings - Standard

Piston rings seal combustion gases into the engine's cylinders, which helps build the compression needed for combustion. Standard piston rings are manufactured to match original engine specifications and are typically used when rebuilding or restoring an engine. The piston rings are also used to oil the cylinder walls to keep the piston moving and lubricated. Piston rings also prevent the air-fuel mixture from passing the piston and entering the crankcase, which could lead to reduced performance and fuel efficiency.