Subaru Upper Engine Cleaner SA459 is the only upper engine cleaning product that has been tested and approved by the factory to be used in Subaru vehicles, and included as a factory requirement in the maintenance and service schedule. It contains a powerful foaming agent to effectively clean the induction system and combustion chamber of the engine. Cylinder Cleaner Features & Benefits Specifically formulated for strong penetrating, dissolving, cleaning and solvent ability helps maintain smooth airflow so that the engine can breathe correctly. SA459 reduces the build up of deposits such as carbon, varnish, gum etc. in the manifold and combustion chamber, resulting in cleaner exhaust gases. Spray foaming material penetrates into every small part of the system Easier starting, smoother idling Reduces pinging caused by hot spots Suitable for vehicles with catalytic converters. Why use Subaru Upper Engine Cleaner? Only product factory tested and approved Fully compatible with the alloys and synthetics in a Subaru Boxer Engine Meets factory maintenance and service schedule requirements
