5.3 vs 3.0 longevity

[Atlas]

20 minutes ago, KARNUT said:

Maybe you can see through your obvious hatred that I actually mentioned what they’re still good for. After actually witnessing the change over the years. I didn’t mention the hundreds of customers who pass through our business who actually have experience the same change over. If you can manage to read the words I actually wrote they still use them where needed. There’re not as cost effective as in the past. My words are from experience. Not I heard it somewhere from someone. Maybe you can learn something if you don’t have preconceived notions to have put KARNUT in his place. If the attempt to throw shade in your first paragraph was removed you’ll see we pretty much said the same thing. I didn’t mention the horsepower or TQ ratings because that’s a gimme since the beginning of the horsepower wars. What’s new is the loss of usefulness in the business world. I come from the business world and pass the experience from my eyes. No graphs, not a one off. Maybe if you put away your obvious distain you may get enlighten. You seem to only pick up words that may make your point. Even if the true meaning is right there in front of you. So I’ll wait for your next attempt to insult. But once again I’ll remind you that we pretty much said the same thing. 

 

You didn't mention the HP/torque ratings because you failed to analyze that point in context of how the engines have changed over time, and how the price of gas and diesel have inverted over time, and then became insolent because you were hoping for vindication in your first post to prove me wrong. The improvements aren't a "gimme", they have been the result of conscientious, focused, and very expensive development over the past 25 years to where we have small diesels that start in 0-degree weather with the push of a button, tow 12,000 lbs in "light duty" applications, get north of 25mpg or better, while carrying a 100k mile warranty. Similarly, we have gas V6 engines in pickups which wow and outperform on their level, too. You think I'm coming from a standpoint of a "graph" compared to your supposed years of experience, or your brothers, I'm not sure. Anyway, it's an incorrect assumption, and also an attempt to demean.

 

Similarly, we now have medium duty diesels which go 20k between oil changes, only require diesel filter changes every 18 months, no longer require additives in the coolant, don't need coolant filters, are more efficient than ever AND they barely soot the tailpipe. Did I mention that most diesels actually burn cleaner when properly equipped with modern emissions than a comparable gas engine? I'm sure nobody you've mentioned who "idles on a pipeline all day" ever gave a second thought to any environmental impact, but you must know, since you live in Texas, air quality can be absolutely horrid down there. And we haven't even talked about heavy duty diesels and the improvements those have seen.

 

Like I said. Most evidence given is anecdotal. Thanks for confirming that statement again. You're saying they cost a little more to maintain over the useful life of a vehicle while completely ignoring ALL the other benefits, and that's just intellectually disingenuous.

Edited October 14, 2025 by Atlas

[KARNUT]

8 minutes ago, Atlas said:

 

You didn't mention the HP/torque ratings because you failed to analyze that point in context of how the engines have changed over time, and how the price of gas and diesel have inverted over time, and then became insolent because you were hoping for vindication in your first post to prove me wrong. The improvements aren't a "gimme", they have been the result of conscientious, focused, and very expensive development over the past 25 years to where we have small diesels that start in 0-degree weather with the push of a button, tow 12,000 lbs in "light duty" applications, get north of 25mpg or better, while carrying a 100k mile warranty. Similarly, we have gas V6 engines in pickups which wow and outperform on their level, too. You think I'm coming from a standpoint of a "graph" compared to your supposed years of experience, or your brothers, I'm not sure. Anyway, it's an incorrect assumption, and also an attempt to demean.

 

Similarly, we now have medium duty diesels which go 20k between oil changes, only require diesel filter changes every 18 months, no longer require additives in the coolant, don't need coolant filters, are more efficient than ever AND they barely soot the tailpipe. Did I mention that most diesels actually burn cleaner when properly equipped with modern emissions than a comparable gas engine? I'm sure nobody you've mentioned who "idles on a pipeline all day" ever gave a second thought to any environmental impact, but you must know, since you live in Texas, air quality can be absolutely horrid down there. And we haven't even talked about heavy duty diesels and the improvements those have seen.

 

Like I said. Most evidence given is anecdotal. Thanks for confirming that statement again. You're saying they cost a little more to maintain over the useful life of a vehicle while completely ignoring ALL the other benefits, and that's just intellectually disingenuous.

There’s not a thing you could educate me on engines of any kind. Your post points out that you’re trying to convince yourself you do. Anyone with any experience knows all about what you speak. As far as engines running on pipelines it’s for safety and the wellbeing of our workers. It’s a cooling center for our workers. The equipment that osha makes them wear causes rapid overheating. Most cities employees and pipeline workers IV worked with. Are required to keep their trucks running and periodically sit in them. If they overheat they can be written up. As usual you continue to show your ignorance. I rather in joy  it so rock on. 

[Atlas]

6 minutes ago, KARNUT said:

There’s not a thing you could educate me on engines of any kind. Your post points out that you’re trying to convince yourself you do. Anyone with any experience knows all about what you speak. As far as engines running on pipelines it’s for safety and the wellbeing of our workers. It’s a cooling center for our workers. The equipment that osha makes them wear causes rapid overheating. Most cities employees and pipeline workers IV worked with. Are required to keep their trucks running and periodically sit in them. If they overheat they can be written up. As usual you continue to show your ignorance. I rather in joy  it so rock on. 

 

I'm aware of OSHA requirements, but from a different industry. The disintegration of your composure and increase in spelling/grammar errors in your post tells me you're becoming hot under the collar. Go sit in your truck and cool off, you're making some pretty wild assumptions and accusations.

[KARNUT]

4 minutes ago, Atlas said:

 

I'm aware of OSHA requirements, but from a different industry. The disintegration of your composure and increase in spelling/grammar errors in your post tells me you're becoming hot under the collar. Go sit in your truck and cool off, you're making some pretty wild assumptions and accusations.

You can’t have intelligent conversations so the insults fly. The only thing I learned from you is you don’t have comprehension skills. This whole exercise began when you didn’t recognize in your haste to insult. That you were repeating what I wrote. Pointing it out triggered you. You’re interrupting my cartoons now so have a good day. Your assignment today is watching Turning Point videos. Man I bet that triggered you.

[Atlas]

3 minutes ago, KARNUT said:

You can’t have intelligent conversations so the insults fly. The only thing I learned from you is you don’t have comprehension skills. This whole exercise began when you didn’t recognize in your haste to insult. That you were repeating what I wrote. Pointing it out triggered you. You’re interrupting my cartoons now so have a good day. Your assignment today is watching Turning Point videos. Man I bet that triggered you.

 

But why can't you come up with a response to the information I've posted? We're not saying the same things. You're storming off to go watch cartoons.

[KARNUT]

20 minutes ago, Atlas said:

 

But why can't you come up with a response to the information I've posted? We're not saying the same things. You're storming off to go watch cartoons.

Not storming, just bored with you. You talk in circles. 

[PunchT37]

The OP was asking about reliability of a 5.3 vs 3.0.

 

Modern light duty diesels are much less reliable than just a few years ago.

 

Co worker still has a 2000 VW Jetta with the 1.9L diesel. Thing is bullet proof. But, that was 25 years ago. What changed? 

"I`ll give you 3 guesses and the 1`st 2 don`t count", as my old boss used to say.

[Atlas]

It's called thread drift and it happens after a question has been thoroughly answered. OP appears to have bought a used gasser per posts in another thread.

[KARNUT]

24 minutes ago, PunchT37 said:

The OP was asking about reliability of a 5.3 vs 3.0.

 

Modern light duty diesels are much less reliable than just a few years ago.

 

Co worker still has a 2000 VW Jetta with the 1.9L diesel. Thing is bullet proof. But, that was 25 years ago. What changed? 

"I`ll give you 3 guesses and the 1`st 2 don`t count", as my old boss used to say.

Honestly that’s affecting all engines and makes even Toyota. I got a letter about the engine in my 16 Odyssey. They upped the warranty. I was passed the mileage anyway. We have a 2000 7.3 and a 98 5.9 still going strong. It’s more about cost of ownership and backing from the manufacturer. My brother in law, brother with 3 6.7s deleted are high mileage still going. Not good fuel mileage. The 7.3 and the 5.9 pre emissions great fuel mileage. The write up I just read about the diesel option in the GM SUVs only offered better fuel mileage but less power than the 6.2. No personal experience with those. 

[Gangly]

SCR, DPF, etc. HAVE been a thorn in the site of large diesel manufacturers since Tier 4 regulations, but the real issues stem back to Tier 3 with the introduction of mandated EGR systems.  Diesels by themselves are not any less reliable than before, but the required accessories attached to diesels have created substantial issues, primarily the EGR system.  The amount of diesel engine failures resulting from an EGR cooler failure are substantial, to the point where next gen diesels will most likely run without EGR's and rely on elevated engine temperatures to run cleaner.  Elevated diesel engine temperatures bring about a whole new bucket of issues, but the manufacturers are more inclined to deal with those issues than the current situation they find themselves in.  

 

Regardless, in 2027 model units, the SCR, DPF, etc. systems will lose a lot of their bite since the EPA is drastically reducing penalties for improper operation or delinquent DEF fluid refills.  Your diesel will no longer go straight into limp mode if you don't have DEF fluid in your reservoir for any reason, and you can continue to operate for a designated distance without cussing out your vehicle.

Edited October 27, 2025 by Gangly