Mobil 1 0w40 to become factory fill on Corvettes

[Snagglefoot]

No one really discussed whatt “track use” means. For me I think it it means full throttle, 6,000 rpm, driving with full boost from the super charger. Although the engine temp might stay at 210 F, the oil temps would go up because of the higher combustion temperatures. Like one poster said, you would probably burn through a quantity of xx-30 oil. In this case I guess I would side with the high vis guys and use a xx-40 oil.

However, there is no need to extrapolate that conclusion to your daily driver and say if 40 Is good for Vettes, I should use it in my Chevette.

 

[zfasts03]

How far back are they back specing this 0w-40 Mobil 1?

 

[Patman]

Originally Posted By: zfasts03
How far back are they back specing this 0w-40 Mobil 1?


Corvette's chief engineer Tadge Juechter recommends it for all LT1 Corvettes, so it will definitely be warranty approved for 2014-2018s but in a recent presentation given by Mobil 1, I also heard them mention it was even going to be recommended for the C5 and C6 Corvettes as well, so that goes back to 1997! I really don't think it would be a problem even if someone wanted to run it in an 84-96 Corvette either.

 

[irv]

Originally Posted By: Patman
Originally Posted By: zfasts03
How far back are they back specing this 0w-40 Mobil 1?


Corvette's chief engineer Tadge Juechter recommends it for all LT1 Corvettes, so it will definitely be warranty approved for 2014-2018s but in a recent presentation given by Mobil 1, I also heard them mention it was even going to be recommended for the C5 and C6 Corvettes as well, so that goes back to 1997! I really don't think it would be a problem even if someone wanted to run it in an 84-96 Corvette either.


Patman, how would the owners of these Corvettes find out that their oil requirements have now changed? I read earlier, but thought I likely misunderstood it, that GM was now recommending D1/G2 in a variety of engines, including my wife's 2017 3.6 Chevy Impala?
The oil filler cap reads Dexos 1 and that is what my current stash is, which should last at least a couple of years, so what if I don't switch over and continue to run just D1 oil?

I assume this isn't a GM recommendation and just Mobil's? I'm confused?

 

[oil_film_movies]

Originally Posted By: Snagglefoot
No one really discussed whatt “track use” means. For me I think it means full throttle, 6,000 rpm, driving with full boost from the super charger. Although the engine temp might stay at 210 F, the oil temps would go up because of the higher combustion temperatures.


GM's thermal durability testing sounds like "track use" to me:
"GM’s thermal test moves engines between room temperature and 239 degrees at max power in less than 10 minutes, thousands of times. Its global-engine durability test sounds even tougher—and more fun—than its thermal test: “Think of it as drag racing from stoplight to stoplight on Woodward Avenue, starting at Eight Mile Road in Detroit to downtown Pontiac, about 17 miles north,” says Adam Kwiatkowski, director of engine development and validation. “Then turn around and drive at top speed back to Eight Mile, and repeat the cycle about a hundred times.” GM shuts down the turbocharged engines it’s testing once an hour for three minutes immediately after a wide-open-throttle run in order to subject the turbo bearings to a nice heat soak." -- Car and Driver report

Does anybody know if the engine passes if it simply survives (no spun bearings or melted/broken parts)?
Something has driven the engineers to say go up to 15w50 on ZR1-LT5's for "racing", and their old 5w30 spec has been up'ed to 0w40 for the others.
Certainly your racing needs to be pretty hard-core for you to have to go up a viscosity grade. Most people don't race that hard.

 

[juggernaut]

Interesting GM uses turbocharged cars for its thermal testing.

There was an old article on the Forced Performance Turbochargers web showing the thrust bearing of a new turbocharger after being run on some low weight Mobil 1 oil. The new turbocharger had to be rebuilt and FP provided a list of oils it recommended for its turbochargers which were primarily high zinc and higher viscosity to prevent similar occurrences with customers cars.

Admittedly oils have (hopefully) come some way since that article was posted, but its interesting to see GM still sees protection in the form of higher weight oils (even in this day and age) as did FP some years ago.

 

[thescreensavers]

Can't wait for this oil to hit Walmart shelves, I am running dexos2 oil everyday in my Camaro, should drop my cost of oil 30% if they sell 5 quarts at current 0W40 price.

 

[irv]

Originally Posted By: irv
Originally Posted By: Patman
Originally Posted By: zfasts03
How far back are they back specing this 0w-40 Mobil 1?


Corvette's chief engineer Tadge Juechter recommends it for all LT1 Corvettes, so it will definitely be warranty approved for 2014-2018s but in a recent presentation given by Mobil 1, I also heard them mention it was even going to be recommended for the C5 and C6 Corvettes as well, so that goes back to 1997! I really don't think it would be a problem even if someone wanted to run it in an 84-96 Corvette either.


Patman, how would the owners of these Corvettes find out that their oil requirements have now changed? I read earlier, but thought I likely misunderstood it, that GM was now recommending D1/G2 in a variety of engines, including my wife's 2017 3.6 Chevy Impala?
The oil filler cap reads Dexos 1 and that is what my current stash is, which should last at least a couple of years, so what if I don't switch over and continue to run just D1 oil?

I assume this isn't a GM recommendation and just Mobil's? I'm confused?

Patman, or can anyone else help me with my questions/confusion above?

 

[MolaKule]

The majority base oil (C18-50 - BRANCHED, CYCLIC AND LINEAR) is Group III+ using a GTL process.

It is in my view a real synthetic base oil.

 

[Patman]

Originally Posted By: irv



Patman, or can anyone else help me with my questions/confusion above?

I'm not really sure how GM plans on informing Corvette owners of this change, other than through the dealer service department or by visiting various Corvette events and social media. This new oil is GM's recommendation, as I mentioned above, the chief engineer for the Corvette has publicly stated that it's backwards compatible for 2014-2018s.

As far as your Impala goes, if you're under warranty just continue to run a Dexo approved oil. It doesn't have to be gen 2, although the gen 2 stuff is going to be better.

 

[Patman]

Originally Posted By: MolaKule
The majority base oil (C18-50 - BRANCHED, CYCLIC AND LINEAR) is Group III+ using a GTL process.

It is in my view a real synthetic base oil.


Thanks!

I was a bit hesitant at first but now I'm excited to try this oil in my Corvette when it becomes available!

 

[irv]

Originally Posted By: Patman
Originally Posted By: irv



Patman, or can anyone else help me with my questions/confusion above?

I'm not really sure how GM plans on informing Corvette owners of this change, other than through the dealer service department or by visiting various Corvette events and social media. This new oil is GM's recommendation, as I mentioned above, the chief engineer for the Corvette has publicly stated that it's backwards compatible for 2014-2018s.

As far as your Impala goes, if you're under warranty just continue to run a Dexo approved oil. It doesn't have to be gen 2, although the gen 2 stuff is going to be better.


Thanks Patman. I would guess it would be a rather daunting task for GM to inform all previous buyers of this new change so it's highly unlikely anyone will be receiving notifications in the mail? So, with that being said, I also highly doubt they could use that against you if one were to have issues continuing to use Dexos1 oils instead of the new formula, especially if that is what came recommended when the car was first purchased.

By the sounds of things, the jury is still out on just how much better/robust this new D1G2 oil is as well? With my wife's new Impala, I will likely be changing out the oil long before the recommended OCI anyways so I think I will be plenty safe if it is proven that the new formulation is head and shoulders above the old formulation.

Thanks for the reply.

 

[Garak]

That's the one nice thing about GM, with dexos1 5w-30 being back speced for just about anything GM that is conceivably left on the road. And, a dexos2 oil isn't really a problem either, assuming someone isn't trying absurdly long OCIs.

 

[Patman]

I'm curious as to where you guys think this oil will be priced at? A few people on the Corvette Forum have suggested it might be priced at $12 to $13 per quart but I disagree, I think M1 has never priced itself in the same category as Redline or Amsoil and has always offered it's current 0w40 for the same price as the regular 5w30, even when the 0w40 had the most advanced technology in it of all their oils (before the reformulation to FS that is)

I figure that the absolute highest they might price this new oil would be the same as the current lineup of Annual Protection oils. ($40 to $50 per 5 quart jug) But I'm hoping it's more in line with the regular 5w30 or EP ($25 to $28 per 5 quart jug)

 

[OVERKILL]

Originally Posted By: Patman
I'm curious as to where you guys think this oil will be priced at? A few people on the Corvette Forum have suggested it might be priced at $12 to $13 per quart but I disagree, I think M1 has never priced itself in the same category as Redline or Amsoil and has always offered it's current 0w40 for the same price as the regular 5w30, even when the 0w40 had the most advanced technology in it of all their oils (before the reformulation to FS that is)

I figure that the absolute highest they might price this new oil would be the same as the current lineup of Annual Protection oils. ($40 to $50 per 5 quart jug) But I'm hoping it's more in line with the regular 5w30 or EP ($25 to $28 per 5 quart jug)


That price is in-line with the SRT 0w-40 from the dealer, so depending on distribution they may be close.

 

[Patman]

I think the big factor will be if they offer it in the 5 quart jugs. If they don't, I would expect the price to be high enough that I would have a hard time justifying the switch from the current 5w30. That would be a shame as I feel this could be a great oil.

 

[Quattro Pete]

Not trying to be disrespectful, but I'm scratching my head here... you just spent a huge chunk of change on a brand new Vette, but won't come up with a few extra dollars to buy the correct oil?

 

[Patman]

Originally Posted By: Quattro Pete
Not trying to be disrespectful, but I'm scratching my head here... you just spent a huge chunk of change on a brand new Vette, but won't come up with a few extra dollars to buy the correct oil?



That's a valid question, and no disrespect taken, but I also have to think of the fact that the regular Mobil 1 5w30 is a very good oil
(and is the factory fill for my 2018). M1 5w30 is $25 for 5 quarts, and I often see it for $22.88. So if the new oil costs me double that amount, am I doubling the life of my engine to go along with that higher price? Probably not. So even though the car did cost a lot of money, I still have to be practical and spend my money wisely.

 

[4WD]

Originally Posted By: Patman
Originally Posted By: MolaKule
The majority base oil (C18-50 - BRANCHED, CYCLIC AND LINEAR) is Group III+ using a GTL process.

It is in my view a real synthetic base oil.


Thanks!

I was a bit hesitant at first but now I'm excited to try this oil in my Corvette when it becomes available!


Then a splash of SpectraSyn and Esterex … yes … I’d be all over the 0w40 …

 

[Garak]

Originally Posted By: Patman
I'm curious as to where you guys think this oil will be priced at? A few people on the Corvette Forum have suggested it might be priced at $12 to $13 per quart but I disagree, I think M1 has never priced itself in the same category as Redline or Amsoil and has always offered it's current 0w40 for the same price as the regular 5w30, even when the 0w40 had the most advanced technology in it of all their oils (before the reformulation to FS that is)

I would wager it would be tiered the same as the other "OEM" Mobil products are. Now, if that means a 4.4L jug up here, it'll be where the ordinary M1 0w-40 is. If it's going to be in 1 litre bottles, you're getting into M1 ESP territory, of course, which, as you well know, will be $12 to $13 a litre at CT.

If it's available only in 1 litre bottles in Canada, that would mean a trip to Imperial Oil for me.