Mobil 1 and grp III continued.

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Circa 2004 specs:

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The specs above were when M1 was at it's best IMHO. The boron levels were higher and so were the pour points.
 
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Some Mobil 1 contains some Group III.
Some contains none.
For example, Mobil 1 V-Twin 20W-50 is a blend of two PAOS with additives and something to control seal swell.
It is the most stable and shear resistant of all the Mobil 1/Delvac 1 formulas.What has happened is that a PAO (polyalphaolefin) shortage has developed. Some new plants, like ExxonMobil's Beaumont plant, did not get to full capacity right away.
Also new requirements in automatic transmission fluids have required the use of PAOs in place of other stocks.
Some of the smaller chemical companies have begun to produce PAOs.
Large companies like Chevron, BP, and ExxonMobil adjust their formulas to reflect the supply, the price, and the requirements of the ingredients.
The current crop of Group III can replace some or all of the PAO in many applications with zero degradation of performance.
You'll be seeing new Super Group III and Super PAO in products over the next few years.





Tooslick's post was excellent. Look whether you like Mickey or not, I think his last post above indicates what is going on. I think he finally was able to get information from his sources bc he now confirms the existence of Group III in some M1 viscosities. As Tooslick stated, it is the final product that counts. Don't be surprised if Amsoil goes this route either.

*Lets not forget that Tom will still use M1 bc he respects Mobil's quality. That says something about Mobil 1 IMO, coming from a guy that has 37 years in the business and works for Hatco.
 
I agree with you all that the price/performance just isn't as good as it once was. I think with the SM specs reducing the additive levels and now the addition of group III, it's harder to justify using M1. They would also be better off just stating that they now use Group III along with IV/V basestocks.
 
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If I have to double my sump capacity to double my drain interval, how do I save any money?
I believe current SM oils would be more than capable of handling 10,000 to 15,000 mile OCI in virtually all domestic cars if the sump capacity were increased from the current 4-5 quarts to 9-10 quarts.

Virtually all European cars that spec long drains have sump capacity that is 50% to 100% larger than the typical American car.







You would save labor. Even if you do your own oil changes time is money.
 
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I'd say it's looking more and more like they started using Group III when the EP line was introduced.




I had a used oil analysis done on Mobil 1 Extended Performance 10w30 in Aug 2006. Blackstone's comment was; "the viscosity of this oil was mildly low". The oil only had 1600 miles on it. The tested viscosity was 57.5, the value should be 59-65. Engine was Subaru 2.5L turbo.
 
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Look whether you like Mickey or not...




Who could ever continue liking a guy with the dirt-bag stunt he pulled on Tom?

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...I think his last post above indicates what is going on. I think he finally was able to get information from his sources bc he now confirms the existence of Group III in some M1 viscosities...




So in the mean time he did everything he could to discredit Tom, call everyone else irrelevant, all without getting the facts first. Talk about a pompous unprofessional maneuver!

In the mean time, EOM reduced the levels of additives in M1, added a wee bit more in the EP line, mixed in less expensive Group III and then jacked the price up on both at a time when they're making record profits. All without the integrity to be honest with their customers, many of whom we're some of their staunchest supporters.
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Mickey was clearly out of line, no doubt about it. I hope Tom hangs around. Is he gone? Tom was one of the best members we have had on this site in a long while.
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I agree Tom was the supplier of the most eye opening and thought provoking information of the board since I have been here.

If the post is correct about Group III replacing PAO with zero degradation then you can kiss Group IV good-bye forever. Now then why pay a premium price for Mobil over say Pennzoil.
 
I have spyed Tom following this thread, he just hasn't posted. I do hope he continues to participate with BITOG even if he chooses to abstain from this subject.
 
I certainly don't know what group of oil that any company uses, but, I do think it should be required, on the label, to post the base constituents. Not their secretive additive, but percentages of group I, II, III, IV or V.
 
New member here.
I stumbled onto this site and this is the first I've heard of Mobil 1 now having conventional oil components.
This distrubs me greatly, as I've been using their 15w50 grade in roadracing where I regularly see oil sump temps exceeding 350 degrees continuously.
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I've been depending on Mobil 1's PAO base stocks to protect my engine and transmission at 10,000 RPM+ at these temps.
Now I find out I've been mislead by Mobil, and I'm really ________.
(The fact that I have about $500 worth of Mobil 1 Extended Performance sitting in the shop doesn't help either). Back when the old formula 15w50 began to get scarce, I bought out the local Wal-Mart inventory on three occasions, and now have switched to the EP as the regular formula is no longer available in 15w50.

I've been a vocal proponent of Mobil 1 for decades and am really disappointed that they have thrown their integrity to the wind over maximizing profits.
I'm ready to return my inventory and switch brands if I can find the right replacement oil that will meet my needs.

Is there a commonly available full synthetic 15w50 or 20w50 PAO oil out there now? I really hate to have to start mail-ordering my oil as it was so convenient to obtain it wherever in the country I happened to be. I also don't relish the idea of paying $9/quart for Redline or Amsoil.

Thanks in advance,
David
 
If you buy Redline by the 5 gallon pail...it will cost you 150 bucks and some change delivered. If you buy Amsoil by the gallon...5 gallons will cost you the same if your a preferred customer or dealer. Or you can jump to the 30 gallon or 55 gallon drum for an even better deal. Pick it up when your in the manufactures area and save more. Look up Redline on Summits website or talk to the Eastcoast Amsoil dealer that is posted under sponsers at the top of the main list of subjects.
 
Cobranut, many of us feel the same way. Mobil's tech told me that Mobil 1 15w-50 is going back to the "regular Mobil 1" brand rather then the EP. I don't know what that means in terms of base stocks though. I believe Amsoil/Redline are your only other options.

Mobil 1 still contains PAO and Group V base stocks. It is the final performance that counts and I would say that any company would do the same as XOM if they could whether we like it or not. The performance hasn't really changed for the worse if at all being Group III's are very close to Group IV's. Oils like the one used in Ferrari's and even oils like Synergyn all contain Group III/IV and V basestocks. It's not as black and white as some make it. The market will determine whether it was the right decision or not for XOM.
 
I don't see a Eastcoast sponser anymore for Amsoil...anyone want the job? Anyway, Pablo...the Westcoast sponser can help you just the same....I thought at one time the USA was divided by East/West Sponsership?
 
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