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Discussion Starter · #1 ·
Ive searched the forum for an answer and had no luck. so i thought id post it here.

When considering a vehicle's mileage (whether it is high miles or not), I have been advised that an average driver puts on anywhere between 20-25 thousand km per year.

Would there be a similar consideration when looking at engine hours? i understand this may not be as exact to calculate, but i wonder if their is an annual average drivers engine hours?
 

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Average mileage in the US is about 12k miles a yeah or 20000 kms
Not many public vehicles here keep track of engine hours here so I can't help on that one
 

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It is something to consider. When I was in school we did a study on idling and the effects on the vehicle. I don't remember the the numbers exactly (I have the report...I'll look it up), but anyway the basic lay mans term we came up with was that 1 hour of engine idling is equal to like 100 driven miles. Idling is hard on the engine as the low intake velocities promote carbon buildup. Basically it makes the intake and inside of the engine get dirty/cruddy/gunky fast. It would be something to consider if you were buying say a used fleet vehicle or used construction vehicle...
 

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Sorry, I spoke too soon...I save my final school report but not that one...
 

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The problem with engine hours is how much of that time was idling and how much was driving. I have 28,000 miles on my truck a a little over 1000 engine hours. That doesn't tell you though if I do most of my time driving in the city or on the highway with a lot of idling in between. Big rigs keep track of engine hours because they do a lot of idling and with so many of them hooked to GPS tracking systems I'm sure they can extrapolate how many engine hours are idling vs. driving but I'm not sure it would tell you a great deal on a pickup.
 

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^Mine has just over 50k miles with around 1,800 hours. It looks like you could guesstimate and say 25k miles is = 1000 hours.
 

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Discussion Starter · #7 ·
thanks guys. i appreciate the input.
 

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^Mine has just over 50k miles with around 1,800 hours. It looks like you could guesstimate and say 25k miles is = 1000 hours.
I think I see a new thread coming on, the more input we have the better.
 

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I have 5696 miles on my truck now, at 147 hours- 38.75 mph average. If I continue my current driving habits, 25K miles will take just 645 hours, not 1000.

I think that in general, lower engine hours for a given number of miles indicate that a vehicle has been operated a greater percentage of the time at full operating temperature. And that, in turn would suggest the drive train condition would be better than a vehicle with high hours for the same number of miles- barring abusive driving habits.
 

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Here’s a very puzzling miles-hrs running’s idle weird
I sent this 2x’s to my Ram service manger over 4 weeks time and no reply-bought this 18’ 2500 6.4 5 weeks ago with 35000 miles and have this also crossposted
133818
 

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It is something to consider. When I was in school we did a study on idling and the effects on the vehicle. I don't remember the the numbers exactly (I have the report...I'll look it up), but anyway the basic lay mans term we came up with was that 1 hour of engine idling is equal to like 100 driven miles. Idling is hard on the engine as the low intake velocities promote carbon buildup. Basically it makes the intake and inside of the engine get dirty/cruddy/gunky fast. It would be something to consider if you were buying say a used fleet vehicle or used construction vehicle...
I would have my doubts about that study, how are you getting carbon buildup in the intake from idling,
I have torn down many engines over the years the only ones that I saw with considerable crud had either had a lack of maintenance or had been worked hard and hot with minimal spec lubricants.


Here’s a very puzzling miles-hrs running’s idle weird
I sent this 2x’s to my Ram service manger over 4 weeks time and no reply-bought this 18’ 2500 6.4 5 weeks ago with 35000 miles and have this also crossposted View attachment 133818

That is an interesting dash information be hard to get those numbers.
Just for the heck of it, it's rainy out and not much going on this morning so far so I stepped out and took this picture of my dash info;
133829



I do idle considerable some days with the AC on in the summer or the heat on in the winter,
it's worth it to me to be able to step back in and be comfortable when working requires me to be outside in extremes.
 

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I would have my doubts about that study, how are you getting carbon buildup in the intake from idling,
I have torn down many engines over the years the only ones that I saw with considerable crud had either had a lack of maintenance or had been worked hard and hot with minimal spec lubricants.





That is an interesting dash information be hard to get those numbers.
Just for the heck of it, it's rainy out and not much going on this morning so far so I stepped out and took this picture of my dash info;
View attachment 133829


I do idle considerable some days with the AC on in the summer or the heat on in the winter,
it's worth it to me to be able to step back in and be comfortable when working requires me to be outside in extremes.
What too is way off is 200 driving hrs for 37K miles=
I would have my doubts about that study, how are you getting carbon buildup in the intake from idling,
I have torn down many engines over the years the only ones that I saw with considerable crud had either had a lack of maintenance or had been worked hard and hot with minimal spec lubricants.





That is an interesting dash information be hard to get those numbers.
Just for the heck of it, it's rainy out and not much going on this morning so far so I stepped out and took this picture of my dash info;
View attachment 133829


I do idle considerable some days with the AC on in the summer or the heat on in the winter,
it's worth it to me to be able to step back in and be comfortable when working requires me to be outside in extremes.
What also is way off is 200 driving hrs = 37,000 miles
Isn’t that 185 mph avg!!!!!
 

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I would have my doubts about that study, how are you getting carbon buildup in the intake from idling,
I have torn down many engines over the years the only ones that I saw with considerable crud had either had a lack of maintenance or had been worked hard and hot with minimal spec lubricants.





That is an interesting dash information be hard to get those numbers.
Just for the heck of it, it's rainy out and not much going on this morning so far so I stepped out and took this picture of my dash info;
View attachment 133829


I do idle considerable some days with the AC on in the summer or the heat on in the winter,
it's worth it to me to be able to step back in and be comfortable when working requires me to be outside in extremes.
 

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136582

my hours 4 months later, 270 drive hours, only 68 idle hours. 8587 miles, average of 31.8 mph, that’s more like it. Almost like it started working since I have been watching it.....?
 

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Here’s a very puzzling miles-hrs running’s idle weird
I sent this 2x’s to my Ram service manger over 4 weeks time and no reply-bought this 18’ 2500 6.4 5 weeks ago with 35000 miles and have this also crossposted View attachment 133818
138319

I bought this new 7/17/20 and just saw this as well. The mileage alone is like 1000hrs at 40mph.
 
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