GM sells between 500,000 and 800,000 of these trucks with those engines PER YEAR. A 1% failure rate would be between 5,000 and 8,000 customers with sob stories, enough to fill up the net.
GM 5.3 liter V8/6.2 liter burning oil
- Thread starter Navi
- Start date
I'm on my second interval with R&P. Vortec 6.2L with 253k. Just have to know how much 40 or 50 grade to add to hit your desired thickness.
If oil pressure is a concern, thicken it. If consumption is a concern, thicken it.
After 6 months, 5k miles and 15% left on the OLM, my hot idle was right around 17-20 psi. My consumption was right around .5q in that time.
If oil pressure is a concern, thicken it. If consumption is a concern, thicken it.
After 6 months, 5k miles and 15% left on the OLM, my hot idle was right around 17-20 psi. My consumption was right around .5q in that time.
BrendanC
$100 site donor 2024
isn’t that truck spec’d for 5w-30
Yessir. I made an 11.25 cSt@100.
BrendanC
$100 site donor 2024
why are you playing backyard scientist? just run 5w-30
I also run 5w30 in my 6.2L. It has no issues with AFM at all. Also doesn't burn any oil with 5w30 while the original 0w20 that was in it when I bought it had burned at least a quart of oil when I did my first oil change. Anyone that believes these motors will have issues with running thicker oil because of AFM/DFM doesn't understand how it works at all. The owners manual says to use 0W20 because of CAFE standards, nothing more.
So I left the dealership end of 2020 and I recall these engines having a couple oil burning sources.
Upon initial release it was the piston rings/pistons "being improperly sized for the engine" I interpret that as low tension rings being too low tension. This has been rectified on affected engines. I think it was only 2014-2017 v8's... don't quote me on the years.
Second one that I recall was the valve seals disintegrating essentially. I don't think there was a bulletin for the valve seals but I remember it being the primarily oil burning source on v8's that burned oil. Things would just come apart in your hand upon removal.
Upon initial release it was the piston rings/pistons "being improperly sized for the engine" I interpret that as low tension rings being too low tension. This has been rectified on affected engines. I think it was only 2014-2017 v8's... don't quote me on the years.
Second one that I recall was the valve seals disintegrating essentially. I don't think there was a bulletin for the valve seals but I remember it being the primarily oil burning source on v8's that burned oil. Things would just come apart in your hand upon removal.
4WD
$50 site donor 2025
Checked my 5.3’s on Sunday - both full as always …
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