rhagfo
Portland, OR
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Taco wrote:The pickup truck diesel engines will never last at their screaming 3000 rpm redlines.
A class 8 truck runs 2000 rpm. A diesel locomotive runs 1000 rpm. A container ship redlines at 100 rpm. These high speed light duty little truck diesels will surely fall apart with their high rpm operation.
On the other hand you diesel owners had better never ever fly in a plane. With the internal blades of the jet engines spinning 13,500 rpm it is a wonder they can even make one flight. Then the stupid engineers think that it is due for it's first overhaul at 20,000 hours of flight. Year every diesel head on here knows that it will fail in no time flat.
Well Red Line on my Cummins is 3,200 and I only see that on hard acceleration, pull a 6% grade at speed is about 2,200 in 4th (direct drive). ![[emoticon]](http://www.coastresorts.com/sharedcontent/cfb/images/biggrin.gif "biggrin")
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Taco
VA
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Since things that rotate at a high rpm like a jet engine or a turbocharger that feeds air into a diesel engine can easily tolerate high rpm and last a long time.
What parts exactly in a gas internal combustion engine are the ones that are susceptible to rpm specific wear. What part of a gas engine is more likely to wear out than in a diesel engine.
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bkirkpatrick
Brea / Orange County, CA
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Taco wrote:Since things that rotate at a high rpm like a jet engine or a turbocharger that feeds air into a diesel engine can easily tolerate high rpm and last a long time.
What parts exactly in a gas internal combustion engine are the ones that are susceptible to rpm specific wear. What part of a gas engine is more likely to wear out than in a diesel engine.
maybe we should just ask all the dead/blown gas blocks in junk yards. They would probably know best.
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Hannibal
Tampa Bay Area
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No need to hit the junk yard. They should be littering the highways judging by the illogical opinions expressed here.
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trail-explorer
NM
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Amazing this thread has ballooned to 438 pages (based on how I have my preferences set)
Here's my take on the gas vs diesel debate - not with regard to which is better, but when someone starts doing a bunch of math to help them decide which one is better for their financial means and abilities: When they have to do they math to help them decide, they probably don't really have the financial means to afford a diesel, and should just go gas.
Me? I don't care that a diesel cost more for oil changes, etc. I want it, for a more enjoyable trip (more power, etc.) and I'm willing to pay the price for that.
It's not a whole lot different than someone comparing a prius purchase to a normal gas engine car.
Bob
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spud1957
NB
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trail-explorer wrote:Amazing this thread has ballooned to 438 pages (based on how I have my preferences set)
Here's my take on the gas vs diesel debate - not with regard to which is better, but when someone starts doing a bunch of math to help them decide which one is better for their financial means and abilities: When they have to do they math to help them decide, they probably don't really have the financial means to afford a diesel, and should just go gas.
Me? I don't care that a diesel cost more for oil changes, etc. I want it, for a more enjoyable trip (more power, etc.) and I'm willing to pay the price for that.
It's not a whole lot different than someone comparing a prius purchase to a normal gas engine car.
Wow. Talk about an arrogant attitude. I have a gas, I can afford a diesel, I don't need a diesel for 10K lb trailer. Would it make a more perceived enjoyable drive? Subjective.
It's not a matter of affordability but that of making a sound financial decision based on needs and wants.
For someone driving a 250HP, 505TQ, 13 year old diesel, you sir need to take your nose out of the air.
S
* This post was
edited 11/30/14 07:24am by spud1957 *
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Taco
VA
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What I have found in this discussion is these reoccurring themes
A few diesel owners actually have a legitimate need for a diesel where they tow large 5th wheels or toyhaulers over 14k loaded.
The remaining diesel owners usually cite an emotion based reasoning for a diesel. Such as "I like diesel trucks" "It is a more relaxing towing experience" "I felt like my gas truck was working too hard" "Chicks dig diesel trucks" "I like the way a diesel truck sounds"
If you WANT a diesel truck and have the money to spend the extra on a want then you have every right to do that.
Most of the gas truck supporters have a more numbers based reasoning for their choice. "lower cost of ownership while still performing an equivalent task" "lower maintenance costs" "less likelihood of very expensive repairs "
I own a gas truck. I live in the east the highest altitude my truck sees is maybe 3k feet. I have no problem keeping speed on the roads I use with a 10k lb load. My gas truck in my use provides a lower cost of ownership. I set the cruise and steer 95% of the time. I don't feel like it is making a more difficult towing experience for me. I don't mind letting it run 4500 rpm when it needs which really is pretty rare. '
I could afford a diesel if I felt that is what was needed for the job. To me a truck is not a toy it is a piece of equipment. It is purchased as equipment to perform a job. As an equipment purchase cost of operation and ownership is a primary consideration. The job of the truck is to get me, my camper, and my offroad toys to where I want to go. It performs that job to my satisfaction.
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trcgolf
western NY
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looking to trade for a used diesel and my recollection says there are certain models of engines to stay away from. Can anyone help?
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Sport45
Not far enough from Houston, TX
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trcgolf wrote:looking to trade for a used diesel and my recollection says there are certain models of engines to stay away from. Can anyone help?
Conventional wisdom says to avoid the Ford 6.0. I'd also avoid any used diesel that Shows signs of being 'tuned' or doesn't come with good maintenance records.
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The Mad Norsky
Yankton, South Dakota
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trcgolf wrote:looking to trade for a used diesel and my recollection says there are certain models of engines to stay away from. Can anyone help?
As previous poster said, the Ford 6.0L does not enjoy a good reputation.
Add on the Ford 6.4L, but seems mostly because it is a fuel hog compared to other pickup diesels made during that same time period.
Consensus of opinion here seems to point towards pre 2007 back to 2003 or so as best diesels (other than 6.0L mentioned).
So Chevy Duramax, Dodge/Ram Cummins of those time period excellent, unless evidence of modification of some sort has shown being tuned or overpowered to any extent.
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