High Mileage Club for the 5.3 and 6.2

[Bamacommander]

There have been a number of posts regarding the lifter issue, what I would like to know is how many miles you have on your truck with these engines. Right now I’m at 8,500 , but I’ve only had my truck for 7 months.

Edited February 21, 2022 by Bamacommander

[1454]

How many until failure? Or just how many miles currently? 

 

No failure (knock on wood), 22,500 miles, 2021 6.2. Purchased last March/April. 

[Minnvmax]

2019 6.2 64k. No problems other than leaking oil coolant line. (Replaced)

[Moend]

2019 8speed 45k miles no issues so far

[Samthebam]

2019 5.3 AFM, 6 speed, Max Trailering, 18,500 miles, no issues at all so far.

[ChriZ71]

Purchased Nov 2020, 5.3L 8AT @ 25,000 miles. Has been perfect in operation unless you count the sticky auto-stop button when it is cold. I think the family spilled some soda on it on a road trip.  I should get an disabler for the A/S as I hit that button every time I start it. 

[Gangly]

2020 5.3 with 8spd. 

 

51k miles, no issues with motor itself.

[TNTSierra]

2019 High Country, 6.2L 10 spd, with 35K.   Been absolutely perfect except for gas mileage compared to my 2018 6.2L

 

I really like this truck! Going to keep it for a few more years until market falls out and trucks will be back to normal again. And they will come back down. "Patience is the key to virtue"

[AJMBLAZER]

61,000 on my '19.  Rear window leaks and the front axle stub shaft chirp had to be fixed.

 

Love it.  Plan on upgrading it and driving it until it stops working.

[jlong1984]

I had 48,500 on my previous '19 5.3/8L90 with zero issues. 

[FiatDale]

2019 5.3 w/ 50k.  Valve body replaced at 32k, Motor idles slightly rough, still shifts like garbage.

[Welder2014]

2019 SLT 31000 perfect so far. Dealer did change the trans fluid under warranty much smoother shift now. Change oil every 3000-5000 miles using Supertec from day one. 

Edited March 22, 2022 by Welder2014
spelling

[diyer2]

Changing oil more than recommended is more important than the brand.

[Snakes709]

2019 AT4 with the 6.2/10speed, coming up on 61,000kms and not a single issue with the engine. First winter i owned the truck i kept getting "service 4wd system" and my wireless charger wouldnt work. Those are the only issues I have had with my truck. Only mods i have is AFE magnum intake and a JLT oil catch can. I change my oil every 10,000kms.

[SuperOldSchool]

Isn’t this a high mileage thread?

 

Why are folks just posting their current  mileage, being well under even 100k?

 

my 2015 XL Denali has 117k on it.  Trans was replaced at 14k , so it alone has about 100k on it.