Engine idle hours
Mountain Pass
Joined: Dec 2017
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Fleet Mechanic
Joined: Feb 2018
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On flat land, no load, my truck sometimes cruises at just under 1000 rpm. I wonder if that counts, too?
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Hotshot
Joined: Apr 2013
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From: NH
You're at 36% idle time. I think Ford recommends 16% and no more than 20%. But of course many trucks go well beyond 20% as yours has. With more idling comes more frequent regenerations, which introduces more fuel into the crankcase oil, reduces DPF life, etc. I'd do more frequent oil changes for a lot of idling if it were me, but I think the intelligent oil life minder would tell you anyway.
Hotshot
Joined: Apr 2013
Posts: 10,121
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From: NH
Nope...speed is indeed looked at. Obviously, engine running in Park is 100% idle time. In gear, speed is a parameter to accumulate idle time. In gear stopped is idling, and I think slow-speed traffic creep is idle as well. But 50mph...that is not idling.
Mountain Pass
Joined: Jan 2017
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This is just an observation and maybe someone can chime in as we, but it looks like the engine hours on the clock is only those above idle, not a total of all hours. To get a total accumulated hours on the engine you have to add both numbers together? Can anyone confirm this. The reason I ask is that I just finished a long trip and using the trip computer and by looking at engine hours and idle hours it appears that you have to add both together as the display of engine hours is only those hours above idle and idle hours is only those hours idling, I say this as the numbers do not add up to the trip time unless I use this logic. I understand that one can be off by 59 mins in either direction but that is why I used a long trip to check it. My other thought is that keyed on time for the truck racks up trip time? Moving off topic a bit but, I think the OP got his questions answered so can derail a bit.
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Cargo Master
Joined: Apr 2018
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Derail is good.
The whole conversation came up about how much I drive. 17,000 in last 11 weeks. I'm not a hotshotter
Anyways we were talking about average speed, based on engine hours minus idle hours...it's around 50 mph. 30 with all hours.
Most of my driving is highway pulling heavy loads.
The whole conversation came up about how much I drive. 17,000 in last 11 weeks. I'm not a hotshotter
Anyways we were talking about average speed, based on engine hours minus idle hours...it's around 50 mph. 30 with all hours.
Most of my driving is highway pulling heavy loads.