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re: Are the small diesel engines in pickups any good ?

Posted on 9/6/25 at 12:24 pm to
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
70776 posts
Posted on 9/6/25 at 12:24 pm to
Roger. The context of your comment made me think 6.6, and i was curious since I have not seen any prevalent 6.6 vortex issues.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
70776 posts
Posted on 9/6/25 at 12:26 pm to
quote:

If wanting a truck that will still be on the road without major repairs in 15 years and 200k is a different matter. Trucks made in the late 90's early 00's would do that no problem with decent maintenance.


The new ones will as well, especially if you stick to the base trims.
Posted by Turnblad85
Member since Sep 2022
4168 posts
Posted on 9/6/25 at 12:35 pm to
quote:

The new ones will as well, especially if you stick to the base trims.




ban bet?

in 2040 I'll bump this thread


Vehicles, appliances and HVACR manus all have assumed the model of lasting just until out of factory warranty.
Posted by KemoSabe65
70605
Member since Mar 2018
6189 posts
Posted on 9/6/25 at 12:48 pm to
Planned obsolescence

LINK

Had a buddy with a washer that was 30-40 yrs old.
Customer (hvac) with a 60’s fridge
No nuclear spin cycle or ice in the door but both worked like the day they were made. Our desire for gadgets on the everything has brought us to this end.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
70776 posts
Posted on 9/6/25 at 12:53 pm to
Mines at 8 years old so we can ban-fight in 2032 instead of waiting that long

Posted by GREENHEAD22
Member since Nov 2009
20474 posts
Posted on 9/6/25 at 1:38 pm to
If you have the money I would be buying older vehicles now with the plan to fully rebuild them. I mean like 2000 or older.

If not the only option in the future for the majority of people will be government provided mass public transportation.
Posted by saintsfan1977
Arkansas, from Cajun country
Member since Jun 2010
9819 posts
Posted on 9/6/25 at 3:43 pm to
quote:

The 6.2L V8 recall covers 5 years from 2019, faulty rotating assemblies. Engines failing at very low miles, GM suggested going to 0W-40 oil as a stop gap but that's like having to run -30 or -40 in a 3V Triton to keep the cam phasers happy.


Mine(6.2L) blew at 53k miles. 2 months later they replaced it and gave me a 150k mile warranty on the bottom of the motor. I'm hoping I don't get lifter or transmission issues.

I'm running 5w30 in my truck. Don't care if they want me to run 0w40.
Posted by Clames
Member since Oct 2010
18740 posts
Posted on 9/6/25 at 6:28 pm to
quote:

The context of your comment made me think 6.6, and i was curious since I have not seen any prevalent 6.6 vortex issues.


The main knock against it is being a GDI engine. Should have made it port fuel-injection, there's much to be said for the intake port/valve area washing effect PFI offers.
Posted by Clames
Member since Oct 2010
18740 posts
Posted on 9/6/25 at 6:30 pm to
quote:

I'm running 5w30 in my truck. Don't care if they want me to run 0w40.


Think a full synthetic 5W-40 or 10W-40 would do you better.
Posted by GREENHEAD22
Member since Nov 2009
20474 posts
Posted on 9/6/25 at 6:43 pm to
In the 5.3?
Posted by Clames
Member since Oct 2010
18740 posts
Posted on 9/6/25 at 7:40 pm to
quote:

In the 5.3?


Definitely. My fiancée's 5.3L Vortec has lived on 10W-30 or 5W-40 for the last 13 years, runs like a top even though it likes to use some of that oil to mark its territory now. 5W-40 or 10W-30 full synthetic depending on what deals I find between oil changes.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
70776 posts
Posted on 9/6/25 at 8:19 pm to
Yea, I agree 100%

I dont see any advantage to GDI in a low compression NA engine.
Posted by baldona
Florida
Member since Feb 2016
23253 posts
Posted on 9/7/25 at 12:05 pm to
quote:

Where is gas 2 bucks a gallon? I paid 3.05 for diesel today..people just make stuff up


To be fair I haven’t paid much attention to diesel, but gas is about $2.85/ gallon by me and it seemed like diesel was $3.60 or so.
Posted by STATigerFan
St. Amant, LA
Member since Sep 2019
193 posts
Posted on 9/7/25 at 7:06 pm to
I have 40k miles on my 3.0 Duramax. Comparing it to the 5.3 I had before this truck its better in every way I can think of. My commute to and from work is about 32 miles. With the 5.3 I averaged about 18 mpg between going to work and then running around town when I was off. Similar driving in the 3.0 gets me 28 mpg. That’s hand calculated going by the whole tank. If I only drive to and from work I get over 30 mpg and only around the city I get 23 mpg. I usually get diesel at Walmart and we have a Walmart+ account so we get 10 cents off a gallon, it’s been around 2.95-3.25 per gallon since I’ve owned this truck. The diesel is usually like 50-60 cents more per gallon than gasoline. I get 680 miles to the tank in the 3.0 vs 400 miles to the tank in my 5.3, same size tank in both trucks. My oil changes cost the same as the 5.3 did. The diesel has a fuel filter that costs around $30 to change. And the DEF costs me about $20 every 5k miles. I have a 19’ ski boat that I pull to the lake on weekends and the occasional trip to Arkansas or Florida. It gets around 17 mpg towing but DEF consumption is significantly increased. Towing the same boat with my 5.3 I got around 12 mpg. The torque difference between the 5.3 and 3.0 is very noticeable when towing. The 3.0 moves the boat with way less effort, not that the 5.3 didn’t do well, the 3.0 is just better. I have not had any issues with the truck yet but I am concerned about the DEF system long term. Just because of the horror stories. I really like the truck though and I’d buy another tomorrow if something happened to this one.
Posted by Mid Iowa Tiger
Undisclosed Secure Location
Member since Feb 2008
23438 posts
Posted on 9/8/25 at 3:57 pm to
I’m a Ford guy, have been for 40 years - F-150s and 250s. Current truck is a 2014 F-150 with 240k miles on it.

I’m dealing on a 2025 Chevy Trailboss with the 3.0 Duramax in it after I’ve researched the hell of of it.

The LZO is good enough to pull a 40 year Ford guy to the Chevy dark side.
Posted by Mid Iowa Tiger
Undisclosed Secure Location
Member since Feb 2008
23438 posts
Posted on 9/8/25 at 3:59 pm to
quote:

I have heard nothing but good things about the 3.0. The oil belt is the only negative I have heard, not sure what that cost is for that though.


About $4,500 I’ve heard, in other words under 2 cents a mile. No due till 200 or 250 thousand miles.
Posted by White Bear
SPECULATION
Member since Jul 2014
17124 posts
Posted on 9/8/25 at 4:13 pm to
quote:

About $4,500 I’ve heard, in other words under 2 cents a mile. No due till 200 or 250 thousand miles.
resale killer
Posted by Recovered
Member since May 2016
701 posts
Posted on 9/8/25 at 5:17 pm to
2500 bucks unless you are in downtown L.A.
Posted by EagleEye99
Member since Dec 2017
3165 posts
Posted on 9/9/25 at 7:59 am to
quote:

STATigerFan and AUTimbo

Agree with everything in the posts by STAT and Timbo above as I've had similar experience. Bought a new AT4 in Feb of this year and just rolled over 13000mi on it. Loving the heck out of this truck so far.
Posted by White Bear
SPECULATION
Member since Jul 2014
17124 posts
Posted on 9/9/25 at 9:18 am to
This dude is a bit dramatic but it looks like a shite ton of work to change this belt. I’d guess most won’t be changed.

13 minutes is where they’re underneath.

GM designers thought this belt was no big deal since the truck would need a transmixer before 200k.

This post was edited on 9/9/25 at 9:20 am
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