Well, I have to agree with the 10 minute or less rule too. I know my Dodge Cummins manual even goes so far as to recomend 1-6 minutes (depending on how hard your working it) of idle time after running to cool down. It also recomends avoiding periods of extended idling. (due to carbon build up) It is especially important if you are running a turbo unit to give it a cool down period so the cooler oil can cool those turbo charger bearings down a few degrees. I also normally let my tractor run at about 1200 RPM while performing other tasks for a couple minutes rather than shutting down. And just like someone else mentioned - it makes people think your just a workin' fool. That is especially important to get your wife thinking that's the case. /w3tcompact/icons/wink.gif
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