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  1. 2014-2018 Mazda 3 Skyactiv How-To Guides
    Since our engines are the Gas Direct Injection type has anyone done a cleaning of the intake valves? I'm in the process of doing it now using CRC GDI iVD Intake Valve and Turbo Cleaner. I'm at the 1-hour heat soak point right now so I though I'd take a break to make this post. If it all works...
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