Gas vs PSD
Senior User
Joined: May 2004
Posts: 407
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From: Humble, Texas
It's not that I don't believe an engine can go that long, but I don't believe that it has been so trouble free or believe how fast he got it to a million miles doing what he does. As for the Volvo guy, what year is that thing? At 80,000 miles a year, it should be about a 1978 or so. A 30 year old car driving 80,000 miles a year? Not unless he does major work to it when he isn't driving it.
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
It's not that I don't believe an engine can go that long, but I don't believe that it has been so trouble free or believe how fast he got it to a million miles doing what he does. As for the Volvo guy, what year is that thing? At 80,000 miles a year, it should be about a 1978 or so. A 30 year old car driving 80,000 miles a year? Not unless he does major work to it when he isn't driving it.
The guy with the van has 1.2 million miles, and its a 97. That is about 92,000 miles a year, assuming he drives every day (after all he is an expediter) that is only 252 miles a day.
Senior User
Joined: May 2004
Posts: 407
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From: Humble, Texas
Man with 2.6 million-mile Volvo P1800 aims for 3 million — Autoblog For the volvo.
The guy with the van has 1.2 million miles, and its a 97. That is about 92,000 miles a year, assuming he drives every day (after all he is an expediter) that is only 252 miles a day.
The guy with the van has 1.2 million miles, and its a 97. That is about 92,000 miles a year, assuming he drives every day (after all he is an expediter) that is only 252 miles a day.
Postmaster
Joined: Apr 2008
Posts: 4,724
Likes: 4
From: Rogersville, TN
Edit-sorry, just noticed you have a 2.9 too, so don't take my comment the wrong way lol. I never could get one to last any decent amount of time without cracking a head or vibrating like crazy.
Senior User
Joined: Feb 2010
Posts: 236
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From: Whitewater, WI
If turning 4500 rpms is going to blow an engine up then it isn't worth sitting in my driveway, much less towing my trailer. I have a 5.0 Bronco with an automatic and 3.73 gears and trust me, it has seen more than its share of 4-5k rpm climbs and it still runs like brand new with 217k miles on it. I have seen my share of gassers blow up by 150k miles, but I have seen my share of psd's blow up by 150k miles too. Ask Bill what happens to that reliable 7.3 when you don't maintain the coolant. Maintenance, more than anything, is the biggest factor in reliablity.
No one is arguing that the diesel isn't the better option for a semi. Though I doubt any of our trucks are going to be pulling the loads a semi is. Three of my most common towing trips are from Kingsport to Florida, Kingsport to Ohio and Kingsport to West Virginia. I can count the number of times my 5.4 hits 4k rpms on each of those trips on one hand. The rest of the time it is cruising in 5th at 2000-2300.
But at the same time, if gearing isn't important then why don't those semi's have a 2.70 1st gear and get the load moving with all that low end engine torque?
No one is arguing that the diesel isn't the better option for a semi. Though I doubt any of our trucks are going to be pulling the loads a semi is. Three of my most common towing trips are from Kingsport to Florida, Kingsport to Ohio and Kingsport to West Virginia. I can count the number of times my 5.4 hits 4k rpms on each of those trips on one hand. The rest of the time it is cruising in 5th at 2000-2300.
But at the same time, if gearing isn't important then why don't those semi's have a 2.70 1st gear and get the load moving with all that low end engine torque?
Postmaster
Joined: Apr 2008
Posts: 4,724
Likes: 4
From: Rogersville, TN
Bill has an IDI, but the same thing that happened to him happened to a guy I work with a few months ago and his is a 96.
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
The trucks PO ran water in it and said that SCA's were snake oil.
Even knowing that I got it becuase it ran good and the price was right.
Third time I drive it the HG blows.
I thought it might be from my over revving it, but after taking it apart I could not find any damage to point towards that.
HGs or cavitation?
Even knowing that I got it becuase it ran good and the price was right.
Third time I drive it the HG blows.
I thought it might be from my over revving it, but after taking it apart I could not find any damage to point towards that.
HGs or cavitation?
Postmaster
Joined: Apr 2008
Posts: 4,724
Likes: 4
From: Rogersville, TN
The trucks PO ran water in it and said that SCA's were snake oil.
Even knowing that I got it becuase it ran good and the price was right.
Third time I drive it the HG blows.
I thought it might be from my over revving it, but after taking it apart I could not find any damage to point towards that.
HGs or cavitation?
Even knowing that I got it becuase it ran good and the price was right.
Third time I drive it the HG blows.
I thought it might be from my over revving it, but after taking it apart I could not find any damage to point towards that.
HGs or cavitation?
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Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
From what I have seem most people don't know that there truck needs it.
Elder User
Joined: May 2010
Posts: 650
Likes: 0
From: WV
The most efficient land engine wishes it could be anywhere near 50% efficient. Most diesels are between 35-40% efficient, more automotive engines are probably around 35, which the biggest stationary diesels are around 40%. Most modern gassers are 25-30%.
The most efficient engine in the world is a gigantic ship engine, also the biggest engine in the world. Over 100,000HP. It uses compression ignition, but does not burn diesel. It burns bunker fuel (No. 6 fuel oil). It is basically one step up from road tar, and requires massive pre-heating before it is even remotely burnable in an ICE.
The most efficient engine in the world is a gigantic ship engine, also the biggest engine in the world. Over 100,000HP. It uses compression ignition, but does not burn diesel. It burns bunker fuel (No. 6 fuel oil). It is basically one step up from road tar, and requires massive pre-heating before it is even remotely burnable in an ICE.
Your right, I was quoting the theoritcal efficientency, the maximum those engines could reach. My bad agian.
Elder User
Joined: May 2010
Posts: 650
Likes: 0
From: WV
Im saying if you ran an engine at its max TQ/ HP rpm constantly UNTIL i blows up, the one with lower rpm will last longer. Thats why diesel last longer also, they run at lower rpms which equals less wear. And ive seen a 7.3 almost last 800k when a gasser will last 200k when taken care of.
while I agree with you, but I think it's rather a moot point. For 95% of us, the truck will fall apart around the engine long before the engine fall apart, rather it be gas or diesel.
The other thing that will be hugely important is maintance, that will be much more important when the miles rack up. Either engine that is not taken of, will fall apart.
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
Two years ago that is about how many miles I was driving a year. I was going to Summersville, West Virginia and back(450 miles) on the same day two times a week. I was also making two to three trips a week to job sites and back on the same day that were 200 miles round trip. All of that was in addition to my normal 80 miles a day commute to and from the office. I wore out a couple of cheap gassers doing that(cologne v6's), but those things would break down if you just looked at them the wrong way. I can't see my 5.4 or my 7.3 having any issues with that kind of usage.
Edit-sorry, just noticed you have a 2.9 too, so don't take my comment the wrong way lol. I never could get one to last any decent amount of time without cracking a head or vibrating like crazy.
Edit-sorry, just noticed you have a 2.9 too, so don't take my comment the wrong way lol. I never could get one to last any decent amount of time without cracking a head or vibrating like crazy.
Postmaster
Joined: Apr 2008
Posts: 4,724
Likes: 4
From: Rogersville, TN
My dad gave me this 2.9 Ranger (he bought it new in 87), has a 146k on the original heads and 160 PSI on all 6 cylinders. The Cologne design itself is reliable enough in European trim (better heads, better cooling system) and is a 250,000-300,000 mile engine. Unfortunately Ford really screwed the pooch with the American version.
Cargo Master
Joined: Apr 2006
Posts: 3,215
Likes: 8
From: WV
Off topic but.... uhh... nevermind, I don't think its possible to get off topic in this thread 
Anyway, you didn't see many cops in Summersville did ya?
Postmaster
Joined: Apr 2008
Posts: 4,724
Likes: 4
From: Rogersville, TN
I haven't been up there in about a year or so, but there were ALWAYS about 4 or 5 cops sitting where it slows down from 65 to 55 on the downhill section. Where someone put up the big advertising sign calling it a speed trap lol. What part of WV are you from?