First off, lets explain how catch cans work. The purpose of a catch can is to take what is being sent out through the positive crankcase ventilation (PCV) valve, and separate the actual oil that may come out, collect it, and send just air and vapors back to the intake manifold, as opposed to the PCV system sending both air, vapors, and oil back in the intake manifold. The goal is to avoid getting oil into the intake manifold. Oil is meant to lubricate, and unless you drive a diesel, you should not be burning it in any way.
Not needed on a non Turbo charged engine. I use one on my twin Turbo 3.5 ecoboost in my truck but it is direct injection not port injection so the valves need to stay cleaner.
I'm installing a CC on my 2008 Caliber SE 2.0L as well. because I as well didn't like the amount of carbon I found in my intake runners. prefer the clean air.
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