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[ANSWERED] Clear up the oil confusion regarding aftermarket DEXOS 2?

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[ANSWERED] Clear up the oil confusion regarding aftermarket DEXOS 2?

 
Old 03-13-2019, 06:25 PM
  #41  
AzDave47
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?? the link says I am not authorized to view the page?
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Old 03-14-2019, 10:56 AM
  #42  
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Old 03-16-2019, 02:47 AM
  #43  
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Most any high quality 0w-30, 5w30,0w-40 etc, etc given it matches the conditions the vehicle is driven will likely not harm the engine. But non Dexos oil in a blown motor being claimed under warranty is not a prefered situation for an owner. I do believe some of ESP 0W-40 formulation could possibly reduce cam phasing issues with AFM as it has caused engine failures costing GM MONEY. As well as reduce carbon buildup on intake valves that DI engines experience. Much of the "Dexos" formula is based on the ability to help reduce emissions and allow use of emission reducing devices that some non DEXOS approved oils may not allow to function as efficiently . Why the emissions matter so much? Emissions compliance required by government to meet current and future tiers and phases of clean air act and many more reasons. Can cost GM MONEY and future changes could earn tax credits. Another part of Dexos formula is to aid fuel economy. GM has earned billions in tax credits (MONEY) for their US CAFE rating. Fuel economy & emissions are submitted to the EPA with a factory filled specific oil and EPA test cars with the factory fill specified oil. GM is a publicly traded company, and the #1 priority of a publicly traded company is MONEY. I don't say this as a bad thing. Just that GM's primary justification for DEXOS approved oil might not be that it is the best performance oil for your Corvette. I'm not an engineer for an auto manufacturer or oil manufacturer so I can't back my opinion scientifically. I have never been told any of this info directly from a GM employee or representative. I do have a bit of experience with the brand though. From 2006-2017 I was a sales manager & finance director for a GM dealership. A finance director for another GM dealership in 2005 and sales manager or sales person for another GM dealer from 2000-2005.
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Old 03-16-2019, 07:39 PM
  #44  
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As of March 16, 2019, there are no Chevy dealers in metropolitan Orange County California that have the 0W40 Dexos 2 Mobil 1 to sell to me, for use in my 2019 Stingray. And two dealers told me they are using the european formula 0W40 Mobil 1 to do oil changes on 2019 Vettes. What's an owner supposed to do when their car needs oil?
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Old Yesterday, 01:07 PM
  #45  
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Originally Posted by Patman View Post
Do you honestly think you'll get the same level of performance from Walmart's Supertech synthetic? It is dexos1 certified but I bet you it won't give you the same level of engine cleanliness in the long run as a high quality oil like Mobil 1, Pennzoil or Castrol will.
I don;t know what is in Walmart oil, but I said a high quality brand. I wouldn't run Walmart oil in my lawnmower.

My point was between good brands like Penzoil, M1, Castrol ect your engine isn't going to last any longer or shorter by using something other than M1, because M1 is only recommended due to a marketing deal, not because there is anything special about it.
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Old Yesterday, 04:00 PM
  #46  
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Originally Posted by Yamoto View Post
I don;t know what is in Walmart oil, but I said a high quality brand. I wouldn't run Walmart oil in my lawnmower.

My point was between good brands like Penzoil, M1, Castrol ect your engine isn't going to last any longer or shorter by using something other than M1, because M1 is only recommended due to a marketing deal, not because there is anything special about it.
I'm not trying to kick the hornets nest, but Mobil is actually one of the suppliers for Walmart oil, depending on region. It would say XOM on the bottom of the container.

To that end, if a brand is on the GM list of Dexos 1 approved oils, then they meet the minimum specified requirements for the engine. I'm not using Supertech either, but, by definition, it shouldn't hurt anything over a normal street-use oil change interval. The better brands will certainly have more additives for additional protection. From there, it goes back to gbizel's post #43...
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Old Yesterday, 05:46 PM
  #47  
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Supertech synthetic is supplied by a few different oil manufacturers depending on the region but NONE of those manufacturers are ExxonMobil. So youíre not going to get Mobil 1 in a Supertech jug for $17
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Old Yesterday, 06:13 PM
  #48  
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Originally Posted by Patman View Post
Supertech synthetic is supplied by a few different oil manufacturers depending on the region but NONE of those manufacturers are ExxonMobil. So youíre not going to get Mobil 1 in a Supertech jug for $17
You are correct. They are one of several suppliers for the conventional oil. I wasn't trying to imply the oil was comparable to M1. Just attempting to say the brand itself isn't garbage.
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Old Today, 06:14 AM
  #49  
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Itís definitely a good enough oil for running in a daily driver but for a high performance or forced induction engine I would be hesitant to recommend it
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