Duke-44
Wyoming Rockies
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I bought this diesel engine truck several years ago because I was tired of being the last one, pulling my 5er, up the hill and it was the least noisy and smelly diesel out there.
I have always seen, heard and smelled people's idling diesel trucks almost everywhere when parked.
I don't idle mine any differently than when I drove my gasser.
What am I missing, besides a higher fuel bill?
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Helimech
Chino Valley
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Got me, shut it off
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Turtle n Peeps
California
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Duke-44 wrote:I bought this diesel engine truck several years ago because I was tired of being the last one, pulling my 5er, up the hill and it was the least noisy and smelly diesel out there.
I have always seen, heard and smelled people's idling diesel trucks almost everywhere when parked.
I don't idle mine any differently than when I drove my gasser.
What am I missing, besides a higher fuel bill?
In the old dinosaur days turbos had only oil cooling and soft babbitt bearings and diesel fuel was about 15 cents a gallon. Low quality oil coked and would plug up the bearing holes and return line and hole.
After a good long pull up a hill at WOT the turbo would be smokin hot and so would the oil. If you shut the engine off it could coke up and smoke the bearings.
The long and short of it is old habits die hard. I have driven turbocharged gas engines since the early 80's and they get much hotter than a diesel turbo. I always drove it like any gas engine to the much chagrin of some old trucker warnings. Never lost a turbo.
IMHO and other expert opinions say a modern diesel with water/oil cooling does not need to be idled at all.
IOW your not missing a thing.
That being said, a little common sense comes into play. It would never be a good to go WOT up a 15% hill for a half an hour and when you get to the summit turn the engine off. Even in those conditions 1 or two minutes of idle time is fine. But that goes for any engine, turbo'ed or not.
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45Ricochet
North Idaho
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About the only time I idle is after a long pull (cool turbo down), when I want the heater or A/C on and if I haven't gotten to normal operating temperature (winter months).
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downtheroad
Pacific Northwest
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Real men only drive Dodge 24 valve rattlers...and they always let them idle for at least 30 minutes every morning at 5AM before heading out to go fishing.
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katysdad
Virginia
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Only time I let mine idle is when stopping after a long run or heavy load to let the internal heat dissipate and for the turbo to cool down so it doesn't cook the oil in the turbo bearings,usually about 5 minutes. Other than that there is no need to waste fuel. Long idle times can also result in low combustion temperatures which result in unburned fuel washing the oil off the cylinder walls and causing premature ring And cylinder wear.
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ib516
Up here!
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Read your owners manual. The reason for idling (in some rare instances) is in there.
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jmckelvy
North Alabama
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katysdad wrote:Only time I let mine idle is when stopping after a long run or heavy load to let the internal heat dissipate and for the turbo to cool down so it doesn't cook the oil in the turbo bearings,usually about 5 minutes. Other than that there is no need to waste fuel. Long idle times can also result in low combustion temperatures which result in unburned fuel washing the oil off the cylinder walls and causing premature ring And cylinder wear.
X2
I just turn mine off regardless.  The Edge J/A has a turbo cool down timer which I have set at 320. The truck automatically shuts down when the EGT reaches that level.
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Wingnusa
Scott and Brenda Retired and Wingn the USA
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Get a pyrometer installed and that will be your only issue on idling. Just make sure your turbo is cooled down to 350 degrees or less before you shutdown.
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