OIL, 0-20 or otherwise (couldn't find the other oil threads)

[dos0711]

It's not perfect but there are some good bits in there.

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[ShadowsPapa]

It's not perfect but there are some good bits in there.

Absolutely.
Also points out that the oil companies typically work WITH the auto makers, and, API consists of all sides, all parties involved.

(I'm rather interested in a Valvoline product mentioned in that - wonder if it's available for my older vehicles)

 

[ShadowsPapa]

PS - I'm aware of and recall DOS 7.1 but not a 7.11 ...................

 

[dos0711]

PS - I'm aware of and recall DOS 7.1 but not a 7.11 ...................

""DOS 7.11" is a version of MS-DOS, specifically the version included with Windows Millennium Edition (WinME). It's sometimes referred to as a version of MS-DOS that was compiled by DOS enthusiasts, adding features like long filenames, better disk checking for large drives, support for sound cards, and multiple languages. While not an official release, it built upon MS-DOS 6.22 and incorporated components from Windows 98's MS-DOS 7.1"

 

[Pismo61]

youtube.com/watch?v=i0VoEhW2I-E&ab_channel=EngineeringExplained

 

[ShadowsPapa]

""DOS 7.11" is a version of MS-DOS, specifically the version included with Windows Millennium Edition (WinME). It's sometimes referred to as a version of MS-DOS that was compiled by DOS enthusiasts, adding features like long filenames, better disk checking for large drives, support for sound cards, and multiple languages. While not an official release, it built upon MS-DOS 6.22 and incorporated components from Windows 98's MS-DOS 7.1"

Guess I forgot about that phase!

 

[dos0711]

Guess I forgot about that phase!

It was worth forgetting lol

 

[Firebird]

Interesting how GM just flips a switch when it is convenient for them to go from 0W-20 to 0W-40.

Nothing wrong with sticking to 0W-20 as recommended in the owners manual, but I have been running 5W-30 the last couple of oil changes after dumping the factory fill and am currently running 5W-40 Euro spec oil and probably will for the remainder of the summer.

I am sure some shrieking violets will be along to having a contrary opinion on that and that is fine. I am not risk adverse over it nor claim anyone should follow what I do.

I run 5w30 in my Gladiator, and 0w40 in my Durango R/T

 

[ShadowsPapa]

It was worth forgetting lol

You don't miss MS Bob?

If I recall, I, and companies I worked for, totally skipped Windows ME, thank goodness.

 

[Deleted member 67086]

Many of the posts in this conversation on oil viscosity are ultimately about concerns with the 3.6 rocker arm/cam issues. Just watched this video of yet another well known JT owner who fell victim to this issue. He starts talking about the cam issues at the 10 minute 20 second mark, mentions there are people who’ve run thicker oil who’ve still had the issue. He also mentions that, at the time of this video, the back order of 12k. I share his disappointed with #JEEP!.

 

[ShadowsPapa]

Many of the posts in this conversation on oil viscosity are ultimately about concerns with the 3.6 rocker arm/cam issues. Just watched this video of yet another well known JT owner who fell victim to this issue. He starts talking about the cam issues at the 10 minute 20 second mark, mentions there are people who’ve run thicker oil who’ve still had the issue. He also mentions that, at the time of this video, the back order of 12k. I share his disappointed with #JEEP!.

Pretty well supports what I've seen, and suspected, based on my engine and oil stuff, that it's not a viscosity issue.

 

[WK2JT]

Pretty well supports what I've seen, and suspected, based on my engine and oil stuff, that it's not a viscosity issue.

Yup, and I thought they had this sorted by early 2021 models. Now this is a single data point on a 2023, I’m sure there are others, but it’s the exact same data point... Passenger intake cam.

 

[Deleted member 67086]

Pretty well supports what I've seen, and suspected, based on my engine and oil stuff, that it's not a viscosity issue.

I found this comment on the YouTube video interesting…..

 

[ShadowsPapa]

I found this comment on the YouTube video interesting…..

I have always wondered if there wasn't something like that which was more of a "root cause" thing - something that was happening with some, but not all. I've seen it over the years - an issue that just didn't cause any trouble for some, but did for a few others.
I keep wondering, even asking - where were the engines built that have experienced the bank 1 intake cam issues made?
Which vehicles were they used in?
IF made in a specific plant, production start dates?
Since production for the JL and JT engines has moved to the US starting with the 2024 model year - have we, or will we, see any of the same thing with those?

 

[WK2JT]

I found this comment on the YouTube video interesting…..

I’d like to know how they determined oil flow was restricted in the head. That’s my main worry… they are just throwing parts at it to get past warranty and not addressing the root cause

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