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Old 02-03-2013, 06:39 PM   #11
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I haven't ever "consciously" let mine idle down when stopping for gas, and when pulling into a campground, it usually has time to idle down before I get done parking it. I don't really pull any heavy stuff, at least yet anyway. I mean no big hills and such yet. But I think the advice given above pretty well sums it up. This thing pulls like a dentist on a bad tooth!
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Old 02-03-2013, 07:09 PM   #12
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I have the 7.3 and the manual states that when you pull directly off the superhighway to a rest stop or (similiar) it is recommended to let it idle for ten minutes. if you pull off the superhighway and drive at a slower speed (35 or so) for a few miles then it isn't necessary to idle.

what most people don't know is that the engine oil lubs the turbo, so with the high temp of the turbo it can if not allowed to idle cause trouble with the turbo by boiling the oil. it is well worth the few minutes of idle (IMO) to be sure that the oil has cooled down.

for what it's worth i change my oil every 3,000 miles because of the turbo heat factor, yes it cost, but then engines are a lot more!!!
my late father always told me that oil is cheap, engines are expensive!!

Van.....
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Old 02-03-2013, 07:55 PM   #13
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Originally Posted by acadianbob View Post
Here is a nice write
-up for you on the 6.7.

First Look: Ford's All-New 6.7-Liter V-8 Power Stroke Diesel Engine - PickupTrucks.com News

The turbo's are both oil and water cooled. IMO, you don't need to worry much about idling before shutting down. Technology has improved. Ford has a technology that allows coolant to continue to cool the turbo's even after the engine is shut off.
That was a great article. Thanks for the link (just bought a 2012 F350 Dually).
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Old 02-03-2013, 11:00 PM   #14
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That was a great article. Thanks for the link (just bought a 2012 F350 Dually).
Wow +1. Great article Acadianbob. Learned a lot about 6.7 Scorpion engineering and the assigned cooling parameters. Thank you!!
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Old 02-04-2013, 09:07 AM   #15
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Originally Posted by PRECISION 23 View Post
I have the 7.3 and the manual states that when you pull directly off the superhighway to a rest stop or (similiar) it is recommended to let it idle for ten minutes. if you pull off the superhighway and drive at a slower speed (35 or so) for a few miles then it isn't necessary to idle.

what most people don't know is that the engine oil lubs the turbo, so with the high temp of the turbo it can if not allowed to idle cause trouble with the turbo by boiling the oil. it is well worth the few minutes of idle (IMO) to be sure that the oil has cooled down.

for what it's worth i change my oil every 3,000 miles because of the turbo heat factor, yes it cost, but then engines are a lot more!!!
my late father always told me that oil is cheap, engines are expensive!!

Van.....
The 6.7L and the 7.3L are two totally different engines. The turbo technology is totally different. You cannot compare the two in this context.
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