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Discussion Starter · #1 ·
Hey y'all,

Previous Cummins owner/new Colorado Duramax owner and I have a question. I had to let my Cummins sit idling for about 5-10 minutes after a long hard run so that the turbo could cool down. Do I have to do that with my Duramax? I can't find it in the owners manual or the spec sheet whether or not the turbo is air/oil/water cooled so I am curious the proper steps. Thanks y'all.

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