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Everyone should do what you did. I'd suggest sending the Mobil 1 flyer to your local dealer. It clearly states that Mobil 1 ESP 0W-40 is now recommended for all C7 MYs, and will probably prompt most of them to look into it.:
EDIT: Looks like the flyer isn't in this thread, so I posted a PDF file of it below:
Thank You very helpful: thumbs: I appreciate it !!
Sorry, you are mistaken and a little out-of-date. That used to be the case. The new ESP oils are Dexos 2 not Dexos 1, Gen 2. As you can see in the picture below, the new 0W-40 is clearly labeled Dexos 2.
Interesting, I'd like to find out when that changed. Since the origination of Dexos, Dexos1 has always been green and for gas engines, and Dexos2 was always blue, and for diesel engines, but I will agree with you, based on the information I am seeing after doing some further research, it seems to have changed. Even more confusing now.
It is a relatively recent change, and the new 0W-40 oil spec and formulation was announced sometime last fall. Beginning with 19MY production on January 29, 2018, all C7s are now filled at the factory with this new oil. However, it is now recommended for all LT1/4 engines back to the 14MY.
You are also right that it has generated a significant amount of confusion.
I am completely sure that MacMulkin is fully aware that the new 0W-40 ESP North American version is recommended for all C7s and if they are not aware by now, then they are incompetent. But it is in short supply Nationwide right now and not even available for retail sales. So they are going to save their allocation for the 2019s where it is required because of the factory fill changeover. They are just being disingenuous.
I would bet your former statement is correct, whoever he spoke with probably was ignorant. Communication between GM and dealerships has always been horrible, this issue notwithstanding. I had to bring it to my dealer's attention as well. They didn't fight me like Macmulkin once I showed them the Tadge post and 0W-40 data sheet.
Is a GM dealer going to accept a document issued by Mobil1 as official guidance. I suspect some will demand guidance from GM to insure they are reimbursed for the cost of the oil by GM. Am I wrong?
Yes, you are correct. Some dealers are very black & white, while others are creative enough to plug in part numbers that work and get reimbursed.
Any customer service-oriented service department, when presented with that rather definitive bulletin, ought to be willing to accommodate a customer who wants 0W-40 if they're interested in return business. We've had multiple reports that is happening at some.
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I checked my oil when I got home and noticed it was overfilled a bit... about 3/4 inch over the top of the hash mark. I am guessing they dumped in all 10 quarts instead of the 9.8. I have heard others have been able to suck some out with a turkey baster, but mine has a long skinny tip at the end and I still can't get it far enough down to get any oil out. Any suggestions? Should I even worry about it?
The new bottles are marked as 1 liter (1.057 qts) instead of 1 quart.
That doesn't sound like much difference, but 9 liters = 9.5 qts
You are mistaken. See posts #143 and #144, as well as dozens of other posts on this forum by doing a search on the multiple threads on the same subject. This is a settled issue, but every time the subject comes up, someone new shows up with out-of-date info.
I was in your shoes a few months ago, and said the same thing you did until I was corrected with definitive info that the new ESP 0W-40 is indeed now Dexos 2, as the picture above shows. That was taken at a Chevy dealer, and notice the label saying "For commercial use only, Not for retail sale." Only the Bowling Green factory and a few dealers have it now, and it's the oil in all 2019s. As the attached Mobil 1 flyer above states, it is expected to be in retail stores end of Q3 2018.
My local dealer finally got some in stock and I got my oil changed with the goods. I was also able to twist their arm to let me buy an extra quart for track overfill:
I checked my oil when I got home and noticed it was overfilled a bit... about 3/4 inch over the top of the hash mark. I am guessing they dumped in all 10 quarts instead of the 9.8. I have heard others have been able to suck some out with a turkey baster, but mine has a long skinny tip at the end and I still can't get it far enough down to get any oil out. Any suggestions? Should I even worry about it?
If it's a 1L bottle, then it's the EU version of 0W-40 ESP, not the new Mobil 1 ESP Formula 0W-40. Two different formulations.
If it's a 1L bottle, then it's the EU version of 0W-40 ESP, not the new Mobil 1 ESP Formula 0W-40. Two different formulations.
I had posted a picture but it appears the forum uploader is broken. The bottle does say ESP and Dexos 2, so it looks like the right stuff. I don't believe the older Euro 0W-40 was labeled ESP. You just made me notice it is a liter bottle though, which is strange... I would be surprised if the dealer ordered the wrong oil. Maybe part of the reason they overfilled. Has anybody else come across this?
Last edited by slickstick; 04-15-2018 at 07:17 PM.
Very strange... I just checked and both the GM part number listing I posted earlier and the Mobil 1 fact sheet for the new oil show it as coming in a quart... Glenm27's picture shows he also received his in a liter bottle from his dealer as well.
Just a heads up, I had the 0W-40W Mobil Dexos 2 installed on Thursday. I called Chevy Customer Service and had them contact my dealer to acknowledge I have the 0W-40W oil installed as well as acknowledging that the oil is recommended for the 2017 GS as well as all C7's with Lt1 and Lt4 engines.
Some might say why, just in case any engine problems, I do not want any hear that the oil is not recommended as I have been told by Service Manager that he talks to Tadge's #1 guy and they are saying Mobil 1 0W-40W can be used in my car.
Seems like the left hand does not know what the right hand is saying at Chevy.
If that is the case, there are literally two different formulas of oil with the exact same name? That would be an insane marketing disaster, but you do have me nervous now that they just put the wrong oil in my car
Even more strange would be if that happened to both Glen and I at two different dealerships. Seems unlikely.
Last edited by slickstick; 04-15-2018 at 07:36 PM.
Just a heads up, I had the 0W-40W Mobil Dexos 2 installed on Thursday. I called Chevy Customer Service and had them contact my dealer to acknowledge I have the 0W-40W oil installed as well as acknowledging that the oil is recommended for the 2017 GS as well as all C7's with Lt1 and Lt4 engines.
Some might say why, just in case any engine problems, I do not want any hear that the oil is not recommended as I have been told by Service Manager that he talks to Tadge's #1 guy and they are saying Mobil 1 0W-40W can be used in my car.
Seems like the left hand does not know what the right hand is saying at Chevy.
Did you see the bottle? Did it come in quarts or liters?
I just noticed the date stamp on the bottle is in euro format (DD/MM/YY) and also it was manufactured in France. Furthermore, it does not have the "NASCAR" stamp on it as is shown on the data sheet for the Corvette oil. Just emailed Mobil 1 and will call the dealer tomorrow.
I had posted a picture but it appears the forum uploader is broken. The bottle does say ESP and Dexos 2, so it looks like the right stuff. I don't believe the older Euro 0W-40 was labeled ESP. You just made me notice it is a liter bottle though, which is strange... I would be surprised if the dealer ordered the wrong oil. Maybe part of the reason they overfilled. Has anybody else come across this?
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Well, our cars have been built using metric dimensions and metric fasteners for decades, maybe GM is now edging toward metric for the liquids.
Or maybe somebody made a mistake.
There is a GM part number for the new oil, the number has been revised at least once and the version I have is 19353135, in one liter bottles. That's a GM number, not a Mobil number.
Here's a picture of the email from GM, sorry but my computer won't rotate it upright permanently.
Either way, I wouldn't worry about it. If something goes wrong, which is highly unlikely, it's the dealer's dime to fix it.
Last edited by Gearhead Jim; 04-15-2018 at 08:58 PM.
04-15-2018, 11:42 AM
