Engine Idle Hours Ratio to Engine Hours

DIG

Tremoraholic
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What’s everyone’s idle hours to engine hours looking like? I have a 21 350 purchased the first part of December with 5900 miles and 220 engine hours with 62 of those being idle hours. So my truck has been idling about 28% of the time. I remote start it for about 10 minutes almost every morning and let it run when I’m hooking up trailers. I did sit in it and let it run quite a bit when I first got it playing with all the buttons etc. Other than that most of those idle hours are from traffic I guess and maybe the school pickup line.
 
I've always heard 15% is acceptable with the new diesel emissions. Anything more starts moving into the excessive idle category with possible early DPF issues and service required.
 
Here is a question for the brain trust. Say you have 200 hours and 20 idle hours. Does this mean you engine has run for 200 hours total or 220 hours? Make sense?
I assume engine hours means total engine hours. But you know what they say about assuming!
 
So....nobody wants to post their #’s???
 
EPA/GUVments Purpose Of Monitoring "Idle Hours".... Its just MORE data gathering to plain get rid of Fossil Fuel engines... Thoughts?
I'm sure somebody's tracking it. I do think it is a handy source of information to have as a truck owner though. Using engine hours, idle hours and miles combined can help someone make a better informed decision buying a used truck. For example maybe a truck only has 10,000 miles on it but it also idled for 10,000 hours.
 
Mine are skewed at the moment, only 830 miles. I've spent an inordinate amount of time in the driveway idling while reading the manual and learning everything about the truck, playing with the systems, wifi, voice commands etc. I'm guessing it will settle out at around 5-10% once my normal driving patterns take over. I rarely let the truck warm up or just set idling more than 5 minutes, and I'd guess 80-90% of my driving is highway.
 
Mine are skewed at the moment, only 830 miles. I've spent an inordinate amount of time in the driveway idling while reading the manual and learning everything about the truck, playing with the systems, wifi, voice commands etc. I'm guessing it will settle out at around 5-10% once my normal driving patterns take over. I rarely let the truck warm up or just set idling more than 5 minutes, and I'd guess 80-90% of my driving is highway.
What are your numbers right now?
 
What are your numbers right now?
Mine's about a quarter mile away till 5:30 am. I'll get back with you.
 
Last time I got DEF on my 17’ I had 76,285 miles, 3,475 engine hours and 1,479 idle hours. That’s about 43% idle hours. It had 55% idle hours when I bought it at 20,000 miles. It was a fleet truck before I got it and it obviously spent a lot of time idling. I also work construction and do quite a bit of idling. I traded it at 80,000 and had no DPF issues the whole time I had it and it never did a forced or stationary regen.

I just flipped 1,000 miles on my 21’ today (had it 9 days). I’ll check my hours tomorrow.
 
I was at 1,100 miles this morning. 36 engine hours, 9 idle hours so 25% idle.
 
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34 hours 20 idle 650 miles. I’m use to letting turbo diesels stay running if just running in somewhere. I let mine run about 10 minutes before driving. This is my first DEF engine so I probably should change what I’m doing
 
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I'm sure somebody's tracking it. I do think it is a handy source of information to have as a truck owner though. Using engine hours, idle hours and miles combined can help someone make a better informed decision buying a used truck. For example maybe a truck only has 10,000 miles on it but it also idled for 10,000 hours.
My Chevy I traded in had 107000 miles but only 2880 hours. It was on the highway a lot. Even with the low hours my transmission was on the verge of going out when I traded for the tremor.
 
At 4320 miles, 117 hours with 20 idle or about 17%.
 
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I don't let my truck sit running for much time at all but I'm at about 20%. Sometimes I start it, jump in, 3 min later I will put it in drive and just idle out of the neighborhood before i just bring up the speed a little at a time to get up to operating temp.
When I saw the idle hours I thought it seemed like way too many but I figure it's adding up any time I'm sitting at a stop light, stop at go traffic like construction, or even those few seconds waiting to turn right at a red.
1730 mi
51 hrs
11 idle
 
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What The Dude's, and others', numbers also show is that so much of the USA's ICE caused pollution is due to all the unnecessary stop signs and stoplights. I ran some numbers a few years ago and calculated that at least 400,000 gallons PER DAY was being wasted thusly, and I think I was quite conservative in my calcs. One thing the Euros do right is roundabouts.
 
Bumping this back up to see what others numbers are.

After a little more than a year owning this truck it has 16511 miles, 619 hours and 176 idle hours so it is still has a 28% idle time. I guess my driving habits are consistent. I do spend a lot of time idling in the school pickup line.
 
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