Upper cylinder clean

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Proton M21 Coupe Upper cylinder clean

Does my Proton M21 Coupe need an upper cylinder clean?

A Proton M21 Coupe upper cylinder/engine clean removes carbon deposits and other contaminants from the air intake and combustion chamber, without having to pull the engine apart to do so. An upper cylinder clean can improve a Proton M21 Coupe’s performance, so it runs at it’s best.

Carbon build-up, grime and contaminants are part of a Proton M21 Coupe engine. If left to keep building up it can eventually lead to drivability issues and the engine will run rough and become less reliable. Over time this can lead to engine damage, if the Proton M21 Coupe continues to misfire.

There are various ways to clean a Proton M21 Coupe’s upper cylinders by spraying upper cylinder cleaning into the throttle body, attaching a line to a vacuum hose to the intake manifold and/or spraying into each cylinder via the spark plug holes.

A professional automotive mechanic can carry out a Proton M21 Coupe upper cylinder clean. They have the tools, knowledge and experience to know what cleaner is best for your Proton M21 Coupe and the best method to get the best results.

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