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I recall 1/4 mile track guys in Connecticut in the 90's swearing that Royal Purple oil is the best, which I've used in my from 1997 till 2017 Vipers & Vettes, my 2017 ZL1 Camaro, & my 2019 Ford Raptor which seemed to work quite well with my continuous aggressive driving habits on the roads daily which Arizona's crooked Cops don't care for;-)
Not sure how Royal Purple oil holds up in a legit test against Mobil's best oil nowadays.
It has never been anything but pretty standard stuff on chemistry and uoa. Doesn't meet c8 requirements so somewhat moot
Thanks for the link. Most impressed with this deal including free shipping and the discount applies to orders in Alaska! 16 quarts and aa AC Delco filter as well, all in cost on my porch is 161 dollars.
Yes. The email was 10/04/2022. This bulletin is 11/22. And the link from Redmistrulz was 3/9/22. I would have expected them to eventually determine that it met the spec - and they apparently have. So, its possible that at the time I asked, they had not yet made that determination. As I mentioned, unless fixed in the last few hours, if you use the look up tool it still does not recommend oil for 2023 Corvette. I'm sure that will all get fixed.
Do you see dexos2 in that bulletin? I don't see it. But, while the dexosR spec supercedes the dexos2 spec for high performance gasoline engines (according to mobil), the dexos2 spec is not going away according to Mobil (see attached questions and answers). Perhaps the bulletin is only discussing Amsoil products for gasoline engines.
Answers to Questions, Dexox2 spec in which the oil is low saps, which has to meet API and ACEA spec's: #1 Dexos2 is a gasoline GPF and Diesel DPF low saps oil, Dexos R Gasoline engine only, not low saps. Look at Amsoil DexosR spec, it is not European spec
#2 Look at the bottles if no European spec's on either I would basically think YES, but supercar maybe has different additives added.
#3 No, because it's low sap. 2020-2022 different oil that's why mobil1 will not tell you to use it for warranty issues. Remember the took a oil they already had on the shelf to use till super car car oil came oil. Low, Mid, and High saps oil is real the difference.
I suspect once EXP USA oil runs out only DexosR will be used in the C8 corvette going forward and other generations.
Now Mobil1 ESPx3 is the European and USA spec oil with low saps. There is a difference between Mobil1 0w-40 ESP and Mobil1 0w-40 ESPx3
Old ESP 0W-40 had P - 821 Zn - 860
ESP X3 0W-40 has P - 890 Zn - 994
Mobil™ 1 Supercar 0W‐40 900 phosphorous 990 zinc Advanced full synthetic formula designed for high performance cars to deliver outstanding overall performance Corvettes and Camaros that call for 0W-40 oil.
Mobil™ 1 Supercar 5W-50 1100 phosphorous 1200 zinc Advanced full synthetic formula designed for high performance cars to deliver outstanding overall performance Newer Corvettes that call for 5W-50 oil. API SP
The 0w40 dexos R oils and 5w50 dexos R oils will have lower saps and also lower calcium and higher magnesium than the typical FS oils in order to meet DexosR.
The M1 ESP x3 is still for sale and an oil developed with Porsche but is also Dexos 2 certified and also a great oil for the c8 Corvette.
Both ESP (aka Supercar) and ESP x3 are obviously emissions component friendly (afterall the both meet dexos 2) and both approved for cars with gasoline particulate filters and diesel cars as well.
ESP (aka Supercar) has a HTHS of 3.5 while ESPX3 has a HTHS of 3.8.
Last edited by Sunwarrior; Mar 23, 2023 at 12:40 PM.
Answers to Questions, Dexox2 spec in which the oil is low saps, which has to meet API and ACEA spec's: #1 Dexos2 is a gasoline GPF and Diesel DPF low saps oil, Dexos R Gasoline engine only, not low saps. Look at Amsoil DexosR spec, it is not European spec
#2 Look at the bottles if no European spec's on either I would basically think YES, but supercar maybe has different additives added.
#3 No, because it's low sap. 2020-2022 different oil that's why mobil1 will not tell you to use it for warranty issues. Remember the took a oil they already had on the shelf to use till super car car oil came oil. Low, Mid, and High saps oil is real the difference.
I suspect once EXP USA oil runs out only DexosR will be used in the C8 corvette going forward and other generations.
Now Mobil1 ESPx3 is the European and USA spec oil with low saps. There is a difference between Mobil1 0w-40 ESP and Mobil1 0w-40 ESPx3
Old ESP 0W-40 had P - 821 Zn - 860
ESP X3 0W-40 has P - 890 Zn - 994
Mobil™ 1 Supercar 0W‐40 900 phosphorous 990 zinc Advanced full synthetic formula designed for high performance cars to deliver outstanding overall performance Corvettes and Camaros that call for 0W-40 oil.
Mobil™ 1 Supercar 5W-50 1100 phosphorous 1200 zinc Advanced full synthetic formula designed for high performance cars to deliver outstanding overall performance Newer Corvettes that call for 5W-50 oil. API SP
The 0w40 dexos R oils and 5w50 dexos R oils will have lower saps and also lower calcium and higher magnesium than the typical FS oils in order to meet DexosR.
The M1 ESP x3 is still for sale and an oil developed with Porsche but is also Dexos 2 certified and also a great oil for the c8 Corvette.
Both ESP (aka Supercar) and ESP x3 are obviously emissions component friendly (afterall the both meet dexos 2) and both approved for cars with gasoline particulate filters and diesel cars as well.
ESP (aka Supercar) has a HTHS of 3.5 while ESPX3 has a HTHS of 3.8.
Where you wrote:
"Old ESP 0W-40 had P - 821 Zn - 860"
do really mean "ESP 0W-40" or do you mean "ESP Formula 0W-40"? According to the GM dexos site, those are two different oils each separately licensed under the dexos2. According to Mobil, in the add I posted earlier in this thread, it was Mobil1 "ESP Formula 0W-40" that became "Supercar 0W-40" - and it claims they are the same oil. I attached the clip from the gmdexos site that shows that "ESP 0W-40" and "ESP Formula 0W-40" are separately licensed oils.
do really mean "ESP 0W-40" or do you mean "ESP Formula 0W-40"? According to the GM dexos site, those are two different oils each separately licensed under the dexos2. According to Mobil, in the add I posted earlier in this thread, it was Mobil1 "ESP Formula 0W-40" that became "Supercar 0W-40" - and it claims they are the same oil. I attached the clip from the gmdexos site that shows that "ESP 0W-40" and "ESP Formula 0W-40" are separately licensed oils.
Yes I was talking about the Formula, was it low saps? If it was already low saps then the same. I wish someone could show the back of the bottles
Yes I was talking about the Formula, was it low saps? If it was already low saps then the same. I wish someone could show the back of the bottles
All are low to mid saps. What did you want to know from the labels?
0w40 ESP is now 0w40 Supercar
0w40 Formula ESP is not sold in the USA so ignore it.
0w40 ESP X3 is still sold and is similar to ESP/supercar with better high temp film strength
5w50 supercar is an sp oil that I thought was the same as the new API SP 5w50 x2 but is not.
All are low saps. What did you want to know from the labels?
0w40 ESP is now 0w40 Supercar
0w40 Formula ESP is not sold in the USA so ignore it.
0w40 ESP X3 is still sold and is similar to ESP/supercar with better high temp film strength
5w50 supercar is an sp oil that I thought was the same as the new API SP 5w50 x2 but is not.
Thanks you answered my question about the 0w40, also is the 5w50 supercar low saps or just API SP?
I believe the majority of the sulfated ash is in the zddp and is the source of the phosphorus. If the 5-50 SC has 1100ppm of phosphorus it will have at least that in SA.
All are low saps. What did you want to know from the labels?
0w40 ESP is now 0w40 Supercar 0w40 Formula ESP is not sold in the USA so ignore it.
0w40 ESP X3 is still sold and is similar to ESP/supercar with better high temp film strength
5w50 supercar is an sp oil that I thought was the same as the new API SP 5w50 x2 but is not.
I guess I thought it was the other way around - It was Mobil 1 "ESP Forumla 0W-40" that was rebranded or became Mobil 1 "Supercar 0W-40". I got that information from an ad that I thought you put in a post a while back. I attached it again here. I think it is Mobil 1 "ESP 0W-40" (without the word Formulat in the name) that I think is not sold in the US. The only place I have ever found it is on that gmdexos2 website. It is listed there as a separately licensed oil under dexos2.
I guess its not really important at this point. We all know what we need to do. For 2020-2022 it is ok ot use a dexos 2 rated 0W-40. I think it is also ok to use the Mobil 1 "Supercar 0w-40", which is rated dexosR, in those previous model years since we know it is that same oil as Mobil 1 "ESP Forumla 0W-40" which is dexos2. But interestingly, the gmdexos site does not indicate backward compatibility (yet) and does not show that it also meets dexos2. We also know that for 2023 it is best to use a dexos3 rated oil, and the only one so far is Mobil 1 "Supercar 0W-40".
I guess I thought it was the other way around - It was Mobil 1 "ESP Forumla 0W-40" that was rebranded or became Mobil 1 "Supercar 0W-40". I got that information from an ad that I thought you put in a post a while back. I attached it again here. I think it is Mobil 1 "ESP 0W-40" (without the word Formulat in the name) that I think is not sold in the US. The only place I have ever found it is on that gmdexos2 website. It is listed there as a separately licensed oil under dexos2.
I guess its not really important at this point. We all know what we need to do. For 2020-2022 it is ok ot use a dexos 2 rated 0W-40. I think it is also ok to use the Mobil 1 "Supercar 0w-40", which is rated dexosR, in those previous model years since we know it is that same oil as Mobil 1 "ESP Forumla 0W-40" which is dexos2. But interestingly, the gmdexos site does not indicate backward compatibility (yet) and does not show that it also meets dexos2. We also know that for 2023 it is best to use a dexos3 rated oil, and the only one so far is Mobil 1 "Supercar 0W-40".
As a comment, I don't think you can rely on the UPC to say it is the same product. I have two different Mobil1 M113A filters with the same UPC that came in different boxes, are made by different manufacturers, and are physically different.
I'm not saying the oil is different, just that you can't rely on the UPC to make the distinction that it is the same.
As a comment, I don't think you can rely on the UPC to say it is the same product. I have two different Mobil1 M113A filters with the same UPC that came in different boxes, are made by different manufacturers, and are physically different.
I'm not saying the oil is different, just that you can't rely on the UPC to make the distinction that it is the same.
it's a good point. The way to be sure is to compare the formulation codes....
How about Hawaiian tropic.