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#4709522 - 03/28/18 12:02 PM Mobil 1 5w30 ESP vs 0w40 ESP
Patman Offline



Registered: 05/27/02
Posts: 20475
Loc: Oakville, Ontario
So as some of you know, there is a new dexos2 certified 0w40 Mobil 1 which is now the factory fill in 2019 Corvettes, and is backwards compatible to any prior Corvette engines that require a dexos certified oil. As I have mentioned in a couple of different threads now, it causes me to be interested in a couple of other dexos2 oils, but one in particular is Mobil 1's 5w30 ESP. And in looking at all of the technical data, it looks on paper like the 5w30 ESP might be a better choice than the 0w40 ESP.

For instance, the HTHS of the 5w30 is higher (3.58 vs 3.53) Sulfated ash on the 5w30 is listed at 0.6, the 0w40 is listed as 0.8. And the flashpoint of the 5w30 is also higher, at 254C vs 234C for the 0w40.

So if it turns out I can use the 5w30 ESP and retain my warranty, which of these two oils would you choose?

Here is more info on both of these oils:



_________________________
2018 Corvette (M1 5w30 ESP Formula & Fram Ultra)
2006 Civic EX Coupe (PUP 5w20 & Fram Ultra)
2010 BMW 328i X-Drive (GC 0w40 & Mann)


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#4709530 - 03/28/18 12:13 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: Patman]
CT8 Offline


Registered: 10/09/14
Posts: 11218
Loc: Idaho
0W-40. That is what I will be using the next oil change in my 2.7 Ford pick up.A wee bit thicker to help with any fuel dilution ets and not a whole lot thicker to cause higher than necessary pumping losses.
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

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#4709547 - 03/28/18 12:23 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: Patman]
Patman Offline



Registered: 05/27/02
Posts: 20475
Loc: Oakville, Ontario
I'm also considering using the 5w30 ESP for my next oil change since I can buy it up here an Canadian Tire, and the 0w40 ESP won't be available in stores until probably the end of summer or early fall.

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#4709551 - 03/28/18 12:26 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: Patman]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 4047
Loc: New England
The only downside I see to the 5W30 ESP (assuming extreme cold performance is not critical) is that it has a low starting TBN due to being a very low SAPS oil, so it is not at all suited for longer OCIs except on very low sulfur fuel. Patman, do you know what the sulfur levels are for the gas you get in Canada?
The small HTHS advantage of the 5W30 could be an argument for it being even better than the 0W40 ESP for a very high performance application.

M1 5W30 ESP was one of my choices before dexos1 Gen 2 oils came out, VOAs suggested to me that it should help mitigate LSPI and I liked the low SAPS, low NOACK loss, and high HTHS. I did notice that my car ran a bit hotter on it because it was thicker at temp than what I had been using and gas mileage may have suffered a bit, but not dramatically. I'd be OK with running it now, but prefer an oil that has actually been tested for LSPI performance and this stuff is quite expensive in the USA!


Edited by Virtus_Probi (03/28/18 12:26 PM)
_________________________
2014 Forester XT, 86000 miles
Last Change;
M1 5W30 d1G2
Tokyo Roki 15208AA170 filter

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#4709558 - 03/28/18 12:31 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: Patman]
slacktide_bitog Offline


Registered: 03/20/08
Posts: 6350
Loc: USA
You can probably use any dexos2 with no problems smile

Is this move to 0w40/dexos2 for all Corvettes from 2019-on, or just the special variants like the Z06 and ZR1? Remember, even the previous supercharged C6 ZR1 still called for 5w30 dexos1. I see the XOM recommendation to back-spec the 0w40 to all corvettes since the dexos program first started, but honestly, that might not be a good idea for the way most Corvettes are actually driven. And the ones that actually do use some of the Corvette's performance capabilities have probably already been using 0w40, albeit not the ESP version.

There are a few dexos 2 5w30 oils available, such as PP Euro L at Walmart for about $25/jug, Valvoline's MST 5w30 at Napa for about $9/qt, and I believe Amazon has a Castrol dexos2 5w30 as well. Along with the M1 ESP 5w30 mentioned in the OP.

Remember that Pep Boys does charge extra for the ESP in their M1 oil change specials with the 5qt and filter.

Valvoline's Synpower MST 5w40 is more widely available, and the same price as other Synpower grades. So this would probably be my choice for a Corvette requiring dexos2. (For the Cruze diesel which also takes dexos2, I'd be inclined to use a 5w30 for better fuel economy)

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#4709564 - 03/28/18 12:36 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: Virtus_Probi]
Patman Offline



Registered: 05/27/02
Posts: 20475
Loc: Oakville, Ontario
Originally Posted By: Virtus_Probi
The only downside I see to the 5W30 ESP (assuming extreme cold performance is not critical) is that it has a low starting TBN due to being a very low SAPS oil, so it is not at all suited for longer OCIs except on very low sulfur fuel. Patman, do you know what the sulfur levels are for the gas you get in Canada?



Here is a link with some info as to the sulfur levels in our gasoline:

https://www.canada.ca/en/environment-cli...r-gasoline.html

I'm not concerned about the TBN since I won't be doing long OCIs, probably the highest the OLM would ever let me go would be 7-8k.

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#4709567 - 03/28/18 12:38 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: slacktide_bitog]
Patman Offline



Registered: 05/27/02
Posts: 20475
Loc: Oakville, Ontario
Originally Posted By: slacktide_bitog


Is this move to 0w40/dexos2 for all Corvettes from 2019-on, or just the special variants like the Z06 and ZR1?



All versions of the Corvette are now factory filled with this oil.

Quote:


There are a few dexos 2 5w30 oils available, such as PP Euro L at Walmart for about $25/jug



I have also considered the PP Euro L 5w30 too, I read on here that it might have an HTHS as high as 3.68.

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#4709601 - 03/28/18 01:01 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: Patman]
rooflessVW Online   content


Registered: 12/24/11
Posts: 4310
Loc: North Carolina
Sounds like picking nits to me.
_________________________
"Zed's dead baby, Zed's dead."

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#4709606 - 03/28/18 01:06 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: Patman]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 4047
Loc: New England
I don't want to poke into the Russian Oil Club's VOA of M1 5W30 ESP right now (and it's by far the best VOA I've seen for that oil), but it looks like the 0W40 mentioned above would have a higher ZDDP level than the 5W30. Might be of some importance given that this 0W40 seems to be crafted for this particular Corvette/high output GM application, maybe it's a don't care...
_________________________
2014 Forester XT, 86000 miles
Last Change;
M1 5W30 d1G2
Tokyo Roki 15208AA170 filter

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#4709649 - 03/28/18 01:44 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: Patman]
Bjornviken Offline


Registered: 12/06/17
Posts: 261
Loc: Finland
Intresting... acea c3 oil in a corvette. Like to see a uoa with this oil in a corvette. FS version over this oil anytime.

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#4709662 - 03/28/18 01:55 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: rooflessVW]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 4047
Loc: New England
Originally Posted By: rooflessVW
Sounds like picking nits to me.

Where would BITOG be without endless overanalysis of oils?
;^)

BHAEF = Bob Has An Empty Forum
_________________________
2014 Forester XT, 86000 miles
Last Change;
M1 5W30 d1G2
Tokyo Roki 15208AA170 filter

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#4709671 - 03/28/18 02:02 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: Patman]
LeakySeals Online   content


Registered: 02/18/11
Posts: 6619
Loc: Hudson, NH
So, what does it all mean. Is this 0w40 thinner?
_________________________
06 Escalade 6.0L AWD 160k. M1 5w30 Fram TG
03 Maxima 3.5L 152k ST HM 10w30

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#4709673 - 03/28/18 02:03 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: Patman]
Bjornviken Offline


Registered: 12/06/17
Posts: 261
Loc: Finland
I notice that this is a new formula than we have in EU

here is a link to the EU version

https://www.mobil1.co.uk/synthetic-engin...cations&p=2

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#4709675 - 03/28/18 02:04 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: Bjornviken]
Patman Offline



Registered: 05/27/02
Posts: 20475
Loc: Oakville, Ontario
Originally Posted By: Bjornviken
I notice that this is a new formula than we have in EU

here is a link to the EU version

https://www.mobil1.co.uk/synthetic-engin...cations&p=2



They used the UK formula as a starting point and reformulated it to come up with the version sold here in North America.

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#4709760 - 03/28/18 03:46 PM Re: Mobil 1 5w30 ESP vs 0w40 ESP [Re: Patman]
BlueOvalFitter Offline


Registered: 02/28/03
Posts: 6003
Loc: Cajun Country, La.
Patman, why isn't there any Ford/Lincoln/Mercury vehicles listed in the chart above? Are they from a different planet and don't require 0W40?
shrug

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