Engine hrs: idle
Cargo Master
Joined: Oct 2015
Posts: 2,745
Likes: 72
From: West Virginia
I thought same. Did the math and it comes out to 63.29 kmph, or about 39 mph. average. Checks out. I've been letting my engine idle til it gets to at least 100 degrees F. Looking at the manual the other day, seems as if this is not required for diesels anymore? My engine to idle ratio is about 4:1 currently.
Logistics Pro
Joined: Mar 2019
Posts: 4,064
Likes: 13
SWITCHING OFF THE ENGINE
- 6.7L DIESEL
Switch the ignition off.
To help prolong engine life, we
recommended you allow the engine to idle
for three to five minutes, especially after
any of the following:
• Continuous engine speed.
• High ambient temperature.
• High GVW or GCW operation, for
example heavy loads or trailers.
This allows the turbo charged engine to
cool down.
More Turbo
Joined: Apr 2017
Posts: 736
Likes: 225
Much of our mileage is pulling our 5th wheel. I only let it idle while cooling the turbos down, and a minute of so after a cold start. I guess the rest is stop lights and such.
Laughing Gas
Joined: Oct 2018
Posts: 767
Likes: 78
From: NC
Always or just after a heavy tow? I found it....
SWITCHING OFF THE ENGINE
- 6.7L DIESEL
Switch the ignition off.
To help prolong engine life, we
recommended you allow the engine to idle
for three to five minutes, especially after
any of the following:
• Continuous engine speed.
• High ambient temperature.
• High GVW or GCW operation, for
example heavy loads or trailers.
This allows the turbo charged engine to
cool down.
SWITCHING OFF THE ENGINE
- 6.7L DIESEL
Switch the ignition off.
To help prolong engine life, we
recommended you allow the engine to idle
for three to five minutes, especially after
any of the following:
• Continuous engine speed.
• High ambient temperature.
• High GVW or GCW operation, for
example heavy loads or trailers.
This allows the turbo charged engine to
cool down.
Laughing Gas
Joined: Mar 2018
Posts: 1,244
Likes: 275
From: South Central Indiana
I have the gas engine so no cool down after towing. I'm at 10% of total engine hours and you're at 18% with a diesel so I think you're doing pretty good.
Posting Guru
Joined: Aug 2007
Posts: 1,902
Likes: 26
From: BA, OK
No wonder the 6.7l diesel forum is so quiet lately everyone is posting 6.7l questions in the 17+ SD forum.
I prove exactly how these trucks account for idle hours in this thread here: https://www.ford-trucks.com/forums/1...dle-hours.html
Short version = if engine is running and not in motion it's counted as idle regardless of gear selection.
I prove exactly how these trucks account for idle hours in this thread here: https://www.ford-trucks.com/forums/1...dle-hours.html
Short version = if engine is running and not in motion it's counted as idle regardless of gear selection.
More Turbo
Joined: Apr 2017
Posts: 736
Likes: 225
No wonder the 6.7l diesel forum is so quiet lately everyone is posting 6.7l questions in the 17+ SD forum.
I prove exactly how these trucks account for idle hours in this thread here: https://www.ford-trucks.com/forums/1...dle-hours.html
Short version = if engine is running and not in motion it's counted as idle regardless of gear selection.
I prove exactly how these trucks account for idle hours in this thread here: https://www.ford-trucks.com/forums/1...dle-hours.html
Short version = if engine is running and not in motion it's counted as idle regardless of gear selection.
Cargo Master
Joined: Oct 2015
Posts: 2,745
Likes: 72
From: West Virginia
It seems to me that engine idle hours vs. engine hours is useful information when considering the purchase of a used vehicle. The closer the idle hours get to the total hours obviously indicates a vehicle that sat running for extended periods of time, which we all agree is not a good thing. But is it really good for anything else?
My truck has 2207 hours, with 157 idle hours at 107,300 miles.
What does this tell me? Perhaps, with idle hours well below 10%, subtracting the idle hours from total hours (2050) and dividing miles driven (107300) by those hours I come out with 52 mph average speed over the life of the vehicle. Which I suppose would infer a truck that was primarily highway driven. But that's about it, as far as I can tell.
Anybody else have a different take on the value of this reading?
My truck has 2207 hours, with 157 idle hours at 107,300 miles.
What does this tell me? Perhaps, with idle hours well below 10%, subtracting the idle hours from total hours (2050) and dividing miles driven (107300) by those hours I come out with 52 mph average speed over the life of the vehicle. Which I suppose would infer a truck that was primarily highway driven. But that's about it, as far as I can tell.
Anybody else have a different take on the value of this reading?
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Hotshot
Joined: Oct 2015
Posts: 19,711
Likes: 12,853
From: Wyoming
It seems to me that engine idle hours vs. engine hours is useful information when considering the purchase of a used vehicle. The closer the idle hours get to the total hours obviously indicates a vehicle that sat running for extended periods of time, which we all agree is not a good thing. But is it really good for anything else?
My truck has 2207 hours, with 157 idle hours at 107,300 miles.
What does this tell me? Perhaps, with idle hours well below 10%, subtracting the idle hours from total hours (2050) and dividing miles driven (107300) by those hours I come out with 52 mph average speed over the life of the vehicle. Which I suppose would infer a truck that was primarily highway driven. But that's about it, as far as I can tell.
Anybody else have a different take on the value of this reading?
My truck has 2207 hours, with 157 idle hours at 107,300 miles.
What does this tell me? Perhaps, with idle hours well below 10%, subtracting the idle hours from total hours (2050) and dividing miles driven (107300) by those hours I come out with 52 mph average speed over the life of the vehicle. Which I suppose would infer a truck that was primarily highway driven. But that's about it, as far as I can tell.
Anybody else have a different take on the value of this reading?
More Turbo
Joined: Nov 2005
Posts: 698
Likes: 4
From: Rural Northern California
No wonder the 6.7l diesel forum is so quiet lately everyone is posting 6.7l questions in the 17+ SD forum.
I prove exactly how these trucks account for idle hours in this thread here: https://www.ford-trucks.com/forums/1...dle-hours.html
Short version = if engine is running and not in motion it's counted as idle regardless of gear selection.
I prove exactly how these trucks account for idle hours in this thread here: https://www.ford-trucks.com/forums/1...dle-hours.html
Short version = if engine is running and not in motion it's counted as idle regardless of gear selection.
Thanks for posting your research.
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