6.2 or Diesel?

[BacDoc]

You couldn't give me a diesel engine. I would go with gas.

HaHa! I am definitely a gas engine guy but if anyone out there wants to give me a diesel I will take it bro! lol!!!

 

[Vladimir2306]

Well.. i was careful.. however.. below is the first 25 hr drain. Quite a bit in there.. not really happy. I have built a few engines.. you must be clean.. otherwise you are wasting time and effort.

The second drain at 50 hrs.. was what i expected. Decent. I think everybody needs to get a quick flush of the oil at 25 hrs… no motor will last with what i saw in my 2024 5.3.. as it was delivered.. cleaning and tooling must not be where they were.. my last 5.3 was an ‘18 truck and it was really clean right off the bat.

You guys have a great day..

On the other hand second photo is my 2025 slt 3.0… much cleaner at 25 hrs.. a lot less metal in it too.. now i know i should gotten a yukon with a 3.0…. Bummer!

Yes, when there is dust, you need to change the oil. What did you have on the 5.3 2024?

 

[Airman68]

I too have had many older (2000-2006) 5.3 with 300k+ miles. No engine issues (just transmission). Now in my 2008 Yukon I have this AFM crap to deal with. It does seem the more they try to make them "efficient", the less reliable they become. That said, if you look for the bad, you will surely find it. I have a buddy with the 3.0 in his truck. He uses it for farm use and loves it. I think either way you go, buy what suits your lifestyle the best. I think you have an equal chance of trouble either way.

 

[PPK_]

The filter should not be sawed, but cut, so that there are no shavings from the filter housing

Yes, when there is dust, you need to change the oil. What did you have on the 5.3 2024?

Well.. a brand new yukon.. and that oil and engine has 25 hrs on it… if you look at the picture you can see quite a bit of metal out of the sump.. really not happy a new motor looks that way.

As far as this motor goes… i do not think cleanless is where it was when i had an ‘18 5.3 during assembly of the engine. The 3.0 which i have in a ‘25 SLT pickup.. way cleaner first 25 hr drain than the 5.3

My conculsion is if you have a 5.3… you better get that initial fill oil out. An engine of course needs to run in.. and 25 hrs is enough of that.. given the issue of what you see in the drain oil early on.

 

[PPK_]

I too have had many older (2000-2006) 5.3 with 300k+ miles. No engine issues (just transmission). Now in my 2008 Yukon I have this AFM crap to deal with. It does seem the more they try to make them "efficient", the less reliable they become. That said, if you look for the bad, you will surely find it. I have a buddy with the 3.0 in his truck. He uses it for farm use and loves it. I think either way you go, buy what suits your lifestyle the best. I think you have an equal chance of trouble either way.

I think the 3.0 does have a 100k warranty… as opposed to 60k on the gassers.

 

[Airman68]

I really like the idea of the 3.0. I have heard it gets great driving mileage, and it does well pulling. The only thing I can't wrap my arms around is the oil pump belt that runs in oil. Just don't get that and it's a $3000 repair to replace it (have to pull the tranny) albeit after 150k miles. I still might buy one and take a chance. The used prices are coming down a bit.

 

[WalleyeMikeIII]

I really like the idea of the 3.0. I have heard it gets great driving mileage, and it does well pulling. The only thing I can't wrap my arms around is the oil pump belt that runs in oil. Just don't get that and it's a $3000 repair to replace it (have to pull the tranny) albeit after 150k miles. I still might buy one and take a chance. The used prices are coming down a bit.

They extended the maintenance interval to 200k…