If I was just going to the store I wouldn't idle it down. But If I was pulling the Monty on a long trip and everything was running hot, I sure would. Depends on how hard the turbo is working. And how hot every thing is.
One thing I always do.... Let the engine run for 5 to 10 minutes before I take off in the truck.
That's why I put a remote starter in it. I start it while I'm making my coffee to take to work, or while I am getting ready. I don't like running them too hard while the engine is still rattling. maybe its just me.
J&D
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[IMG]John & Dawn
Sunshine Coast, British Columbia
2006 2980RL &
2005 F350 Lariet, Crewcab
Shortbox Powerstroke 4X4