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[ANSWERED] New oil fill 0w40

Old 01-19-2018, 02:11 PM
  #1  
jvp
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Default [ANSWERED] New oil fill 0w40

The original question is here.

BlueDevilZ51 asked:
Do you recommend 2014-18 C7s use the new Mobil 1 0w40 dexos2 engine oil that has been announced to be the factory oil fill for 2019s. I'd prefer to use one oil instead of having to change from 5w30 to 15w50 for track use. If you don't recommend the earlier C7 using 0w40, why?
Tadge answered:
Yes, the new Mobil1 OW40 Dexos 2 oil (Mobil 1 ESP Formula 0W-40) is also the recommended oil for all C7's prior to 2019. This oil was specifically developed to meet all of GM's performance requirements during engine dyno testing, vehicle road testing and performance track testing including the 2014-2018 Corvettes (all models). The Multi-grade Mobil 1 ESP Formula 0W-40 synthetic motor oil has many benefits including exceptional fast oil flow at startup along with low temperature pump-ability and exceptional viscosity/performance characteristics at high-temperature and high-RPM operating conditions. We are still refining our recommendations for the LT5 in the upcoming ZR1, so they may differ.
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Old 01-19-2018, 02:59 PM
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spearfish25
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Does anyone know where to buy the ESP 0w40? The only one I can find for sale is the European Car formula which apparently isnít the same. The only ESP 0W40 I can find is sold in England.

Last edited by spearfish25; 01-19-2018 at 03:16 PM.
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Old 01-19-2018, 06:30 PM
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So no more oil changes between street and track use?
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Old 01-19-2018, 07:25 PM
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So what about C5 and C6 models? Do we continue with the 5-30 or do we step up to the 0-40?
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Old 01-19-2018, 09:03 PM
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Originally Posted by WKM View Post
So what about C5 and C6 models? Do we continue with the 5-30 or do we step up to the 0-40?
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Old 01-19-2018, 10:03 PM
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Thanks for the reply, now I just have to find who sells it.
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Old 01-20-2018, 01:09 AM
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Does this mean we don't need 15w50 for the track? He didn't specify.
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Old 01-20-2018, 03:18 AM
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Originally Posted by BlueDevilZ51 View Post
Thanks for the reply, now I just have to find who sells it.
Is it not available at dealers yet? Or just not at third parties to do it yourself.
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Old 01-20-2018, 03:19 AM
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Originally Posted by Pacembellum View Post
Does this mean we don't need 15w50 for the track? He didn't specify.
Given the question and Tadge saying yes, and that it met all standards for performance track testing, it sounds like no change is needed which is awesome.
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Old 01-20-2018, 10:34 AM
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Originally Posted by WKM View Post
So what about C5 and C6 models? Do we continue with the 5-30 or do we step up to the 0-40?
well, he did say "C7's"
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Old 01-20-2018, 11:00 AM
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I suspect the oil will be fine for C5's and C6's, but Tadge will never say yes or no without doing any long term durability/reliability testing on those cars. The testing was done for C7's (but not yet completed for the ZR1) so he can unequivocally say the oil is good for the C7.
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Old 01-20-2018, 11:03 AM
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I'm still going to use the remaining Mobile 1 that I already have in my garage before buying some.
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Old 01-20-2018, 04:27 PM
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As soon as 5 quart jugs of the new stuff show up at Walmart, I'll consider it. If I have to go to the dealer to get it, I'll stick to the good ole 5W-30.
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Old 01-20-2018, 04:31 PM
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Bob Paris
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Originally Posted by WKM View Post
So what about C5 and C6 models? Do we continue with the 5-30 or do we step up to the 0-40?
GM has not validated this product for C5/C6 so stay with 5w30

Last edited by Bob Paris; 01-20-2018 at 04:32 PM.
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Old 01-20-2018, 05:42 PM
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Old 01-22-2018, 01:45 PM
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This is awesome not having to worry about street and track oils anymore! I'll probably run the 15w50 till the fall since I doubt this new 0w40 will be easily available till then. Kudo's to GM for working on this and making it retroactive on all LT1's.
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Old 01-26-2018, 10:44 PM
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Mobil 1 recently posted a new Safety Data Sheet and Product Data Sheet for a new "ESP formula 0W40" which differs from the old 0W40. Both are dated Jan 2018.
Attached Images
File Type: pdf
New - MSDS_977213.pdf (83.5 KB, 217 views)
File Type: pdf
Old - MSDS_938146.pdf (84.8 KB, 126 views)
File Type: pdf
Old - GLXXMobil-1-ESP-0W40.pdf (19.3 KB, 125 views)

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Old 01-29-2018, 01:03 AM
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Check summit racing.
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Old 01-29-2018, 07:39 AM
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Originally Posted by magls2 View Post
Check summit racing.
Just did... they old have the old Mobil 1. 0w40
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Old 01-29-2018, 09:43 PM
  #20  
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Member BEZ06 posted this info from a Mobil 1 presentation at the Rolex Corvette Hospitality Tent:

At the Rolex in the Corvette Corral Hospitality Tent right now listening to a Mobil1 presentation.

They say the new 0W-40 is a different formulation than the European version theyíve had for a long time.

The new 0W-40 meets the Dexos certification specs. They say it will be available at dealerships Feb 1st, but not in retail auto stores for about 6 months.

Itís good for the street and track. It will become the factory fill for all Vettes.
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