Oil - going from 0w20 to 0w40

[ShadowsPapa]

I dunno, I’m not a fan of switching oil weights on a whim Like GM is trying/tried to do on the 6.2 trucks. Now my 2019 C7 GS has used Mobil 1 0w-40 from the factory and I see no reason to change that.

I say the same with my brand new leftover ‘24 JTM. I plan to stay with 0w-20, but am shopping for the brand that would have the best additives for it. I’m at 5XX miles on it and will be changing the oil at 1K as it’s almost a year old, but still new… I’m also a young‘ish fogie that still changes his oil/filter once it’s 1 year old or 3K miles.

Chris

GM isn't switching oils - they are using that to kick the can down the road and delay engine failures due to pissy manufacturing - rough journal finishes and so on.
They are still saying stick to the original oil once replaced, and for all built before and after the engines in question.
So no, GM isns't switching.
Mobil and some others use base oils and chemistry that fights loss in viscosity - it resists it more than others so won't thin down as much as some. There are others, of course.

I say change at 1 year regardless of miles, and books going back decades actually say the same thing. I don't put very many miles on my cars, but they get oil changes every fall regardless as I don't want them sitting over the winter with anything other than clean, new oil in them.

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[Fishpilot]

A coworker gifted me this Amsoil 0w-30. He sold the car that this oil was destined for. I’ve got about 44,000 miles with all dealership oil, except the current oil is Pennzoil Ultra Platinum 0w-20. Prior to the current oil (Pennzoil) I did a Blackstone Lab with great results. I like the fact that this 0w-30 meets MS-6395 requirements. But I’m guessing the bar is pretty low for MS-6395.

 

[ShadowsPapa]

A coworker gifted me this Amsoil 0w-30. He sold the car that this oil was destined for. I’ve got about 44,000 miles with all dealership oil, except the current oil is Pennzoil Ultra Platinum 0w-20. Prior to the current oil (Pennzoil) I did a Blackstone Lab with great results. I like the fact that this 0w-30 meets MS-6395 requirements. But I’m guessing the bar is pretty low for MS-6395.

I would only use their signature series. And yeah, more to it than that spec.

 

[Stan H]

I would only use their signature series. And yeah, more to it than that spec.

Ditto % back in the day before Amsoil actually had oil for high mileage vehicles it was their signature series that was suggested for the older high mileage engines. I dont know whats exactly in that crap other than it is their top series oil and it works ,I have plenty of proof .

 

[Firebird]

For better or worse, I'm running 5w30

 

[Stan H]

For better or worse, I'm running 5w30

Huh, thats the exact words I said In front of the minister 28.5 yrs ago. And as soo many have ya might regret it ..just sayin.

 

[davey]

For better or worse, I'm running 5w30

EUROPE RUNS 5W-30 IN THE STELLANTIS V6 AND HAVE BEEN W/O ISSUES I RUN 0-30

 

[ShadowsPapa]

EUROPE RUNS 5W-30 IN THE STELLANTIS V6 AND HAVE BEEN W/O ISSUES I RUN 0-30

When you say no issues, you mean no 3.6 in Europe has ever lost a cam and followers?

(no one has said "your engine will blow up if you run 0w30!!", just that viscosity likely it's the answer, either)

 

[Hootbro]

EUROPE RUNS 5W-30 IN THE STELLANTIS V6 AND HAVE BEEN W/O ISSUES I RUN 0-30

Got anything to back that up? I am always up to learn something.

 

[davey]

Got anything to back that up? I am always up to learn something.

JUST ON LINE FORUMS AND THOSE PEOPLE THAT LIVE IN EURO TALKING ABOUT WHAT THEY RUN,WHEN YOU PULL STELLANTIS V6 AND WHAT WHAT DOES EURO RUN IT PULLS UP 5-30

 

[Hootbro]

JUST ON LINE FORUMS AND THOSE PEOPLE THAT LIVE IN EURO TALKING ABOUT WHAT THEY RUN,WHEN YOU PULL STELLANTIS V6 AND WHAT WHAT DOES EURO RUN IT PULLS UP 5-30

That is not exactly reliable first hand sourcing. Something like a owners manual of what exact model would be helpful.

 

[ShadowsPapa]

JUST ON LINE FORUMS AND THOSE PEOPLE THAT LIVE IN EURO TALKING ABOUT WHAT THEY RUN,WHEN YOU PULL STELLANTIS V6 AND WHAT WHAT DOES EURO RUN IT PULLS UP 5-30

I think he means you said 'no issues' - as if you are suggesting they do not have engine issues there.

 

[davey]

I think he means you said 'no issues' - as if you are suggesting they do not have engine issues there.

JUST WITH THE OIL WEIGHT JUST WORDED WRONG MY BAD,I WAS UNDER IMPRESSION THAT THEY RUN 5-30 FROM DEALER MOLY5-30

 

[Badunit]

I was trying to find out a while back what oil they specify elsewhere in the world. All I found was 0w-20 for recent years. Here is what it says in the French version of the 2021 Gladiator owner's manual:

Nous recommandons l'utilisation d'huile moteur SAE 0W-20 certifiée parl'API, conforme aux exigences de la norme MS-6395 de FCA, telle queMopar, Pennzoil et Shell Helix. Consultez l'inscription sur le bouchon deremplissage d'huile du moteur pour connaître l'indice de viscosité SAEappropriée.

 

[ShadowsPapa]

Nous recommandons l'utilisation d'huile moteur SAE 0W-20 certifiée parl'API, conforme aux exigences de la norme MS-6395 de FCA, telle queMopar, Pennzoil et Shell Helix. Consultez l'inscription sur le bouchon deremplissage d'huile du moteur pour connaître l'indice de viscosité SAEappropriée.

Translation of Arabic numbers aren't needed, though

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