0W-40 or 5W-40 only

[Lawnman23]

I wonder what could happen to my Jeep 3.6L V6 if I use 0W-40.

It will run smooth and well. Perhaps even quieter with less valvetrain clatter.

 

[Bullwinkle007]

seems like you’re blaming the weight of an oil instead of blaming the design of the engine. There’s millions of cars including the Prius, Tacoma, tundra, Corolla, etc etc that have done just fine on 0w20 and will do just fine on 0w16/0w8

The reason for 0/8 0/16 is just dumb. It’s all about cafe and I personally could care less if it suffered a .01 mpg loss bc I choose to use a little thicker oil like a 0/30

 

[Patman]

The reason for 0/8 0/16 is just dumb. It’s all about cafe and I personally could care less if it suffered a .01 mpg loss bc I choose to use a little thicker oil like a 0/30

You might not care but the car manufacturers do.

 

[Toy4x4]

M1 0w40 FS. I think GM had this oil as factory fill in Vettes at one point. Porsche, too (???). Easy to acquire, proven oil, just "set it and forget it". My 4Runner 4.7 loves it!

 

[Patman]

M1 0w40 FS. I think GM had this oil as factory fill in Vettes at one point. Porsche, too (???). Easy to acquire, proven oil, just "set it and forget it". My 4Runner 4.7 loves it!

GM uses a different M1 0w40 in the Corvette, they use Supercar 0w40 (which was previously called ESP Formula 0w40)

 

[OVERKILL]

GM uses a different M1 0w40 in the Corvette, they use Supercar 0w40 (which was previously called ESP Formula 0w40)

GM used the FS 0W-40 in their Race Program Corvettes (this was before the Super Car product existed).

 

[Patman]

GM used the FS 0W-40 in their Race Program Corvettes (this was before the Super Car product existed).

I never knew that actually. I was only thinking about the production cars

 

[OVERKILL]

I never knew that actually. I was only thinking about the production cars

Yeah, thought it was interesting, though not overly surprising given that Porsche was using it in their 24hr cars at the same time.

 

[tcp71]

The macan

Yeah, thought it was interesting, though not overly surprising given that Porsche was using it in their 24hr cars at the same time.

The macan came with a "top up" bottle in a special bag. I need to check if it's still the original bottle from 2017. It's 0w40, but not sure of the vintage.

 

[edyvw]

The macan

The macan came with a "top up" bottle in a special bag. I need to check if it's still the original bottle from 2017. It's 0w40, but not sure of the vintage.

View attachment 277606

If it does not say ESP on bag, you must use FS

 

[Plumb Bob]

Yeah, thought it was interesting, though not overly surprising given that Porsche was using it in their 24hr cars at the same time.

Honest question: Is that a fact, or were they using custom blends packaged in those bottles?

 

[Indyxc]

If you have to run 0w40/5w40 from Mobil, in order of performance (cost excluded)

1. C40 GT
2. ESP X3 or X4
3. Supercar
4. FS

 

[WhizkidTN]

If only VRP came in 0W-40!

 

[Bullwinkle007]

Mazda started pushing out cylinder deactivation across the line up a few years ago and I fear what will become of those engines in the future. I can't think of a case where cylinder deactivation tech has not hurt longevity/reliability; the Honda J35 (one of the greatest mainstream V6s to be made, IMO) has suffered long term issues bc of their VCM nonsense.

Weird bc my 2015 acura MDX J35 supposedly had it, I’ve never felt it, and no eco light ever comes on. Unless it came in a mid model change. My date of mfg is 2014 sold as a 15.
Engine does see 3K OCI M1 ESP 0/30. Previous M1 0/40

 

[Bullwinkle007]

I wonder what could happen to my Jeep 3.6L V6 if I use 0W-40.

I use M1 0/40 in my 2024 Ram 3.6L

 

[Bullwinkle007]

You might not care but the car manufacturers do.

The fee mfg don’t care about us, they only care about cafe and getting the vehicle past the warranty. And as you know, Toyota tundra engine problems they’ve now

 

[Glenda W.]

I’m truly happy you finally came around. But jeeze did you rake us over the coals in your other threads for suggesting you need to use a higher grade….

 

[OVERKILL]

Honest question: Is that a fact, or were they using custom blends packaged in those bottles?

Doug Hillary and Johnny (who worked for Pennzoil) confirmed that it was just OTS FS 0W-40 that came in the regular cardboard boxes it was typical to see it in.

 

[OilUzer]

Speaking of Castrol Euro 0/5W-40, they are on sale at my local Wal-Mart store for $23.97 / 5 qt.

They had few jugs of 5W-40 left and I got a couple.
Castrol Euro 5W/40 approvals:
API SP, A3/B4, BMW LL-01, VW 502 00 / 505 00, Porsche A40, MB 229.5 and 2 Renault xyz.
Also recommended for 3 other Fiat xyz and 3 other Chrysler xyz.

I already had couple of Castrol Euro 0W-40 recently found in the garage purchased in 2020 (I put the dates on the jugs) and it is:
API SN/CF, A3/B4, VW 502 00 / 505 00, A40, MB 229.3 / 229.5 , and 2 other Ford xyz.

The new 5W-40 (API SP) seems to have more Euro bells and whistles than my old (still unused) API SN 0W-40 and 5W has LL-01 which 0W-40 didn't but 0W-40 has MB 229.3 ...

I chase the price per approval and technically speaking and in general, the 0W should be a "better" oil I assume ... But I don't think my cars can tell the difference and we might be splitting hairs.

 

[HouseTiger]

Pity Shell Rotella T6 5W-40 dropped their gasoline 'approval'. I ran it for many years in both motorcycles and my older cars up until about 2015. Seems like it would cover things rather well.