DJF1

Reading on the board that people still only find the SM extended formula Mobil 1 15-50. I though I would let you know guys I just bought the new formulation Mobil 1 15-50 at the Wallmart in Renton WA. So if that wallmart has it, I guess you should be on the look out at your local store.This is the SM/SL rated, gray cap Mobil 1 which looks to be the old or comparable formulation. The label and the look of the bottle is also identical to the good old red cap SM Mobil 1. While I cant do a chemical analysis, I had an old SL Mobil 1 half quart in my garage and I compared the 2. The thickness and color looks identical Needless to say that I raided the store and got all the quarts they had on the self! You should have seen the look of the checkout girl
Now I'm ready for my oil change

tj90

and the price?

Butzi

No taste test???

Blasphemy!

DJF1

24 bucks for the 5 quart jug and 5 bucks for the individual quarts.

fetus

I just came back from Wallmart in Alisa Viejo, Kalifornia and they also have it on the shelves.

bgiere

send a virgin sample to Blackstone Labs http://www.blackstone-labs.com/ let's see if it's the real deal.....

Rick Lee

Costco now has the SL-rated 15W-50 with the red labels and silver caps.

Mahler9th

I saw some "new" stiuff at Walmart too. Don't trust it until/unless I know what is in it, and Mobil 1 will not say. And they can change it at any time, without me knowing... but maybe my race engine will know and not like it!

I'm using Redline.

- Mike

SR71BLACKBIRD

I just went to Costco and bought the "NEW" Mobile 1 15W-50 which states API SM,SL/CF- its interesting to to note that it states "extra protection for severe service such as towning,l hauling and racing.

My left over old Mobile 1 15W-50 Extended Performance API SL/CF - states" Excludes severe service application involving racing and frequent towing and hauling"

So at least it seems on the face value that this is even better than the old Extended SL version of 15-50. per Mobile 1's description on the bottles.

Thanks for the heads up to all that the new formula is around - that got me off my butt to look for it and now I can do my oil change

BTW it was 29.99 for 6 quarts

CWay27

Good to know, now let's see if it will reach walmarts in Canada.

kev

Bad news, but the non-EP stuff, at least for Ph and Zn, appears to be the same as EP SM rated oil

from Charle's post over on Pelican (http://forums.pelicanparts.com/showt...agenumber=17):

DJF1

He also reported that there night be a difference as much as 20% between the labs and he was going to retest the samples. To be honest I find it difficult to believe that Mobil would misrepresent their product openly. In the bottles it clearly states that the new formulation has more additives than the EP formula.
Having said that nothing is impossible, my take on this is that the consistency and thickness of the oil also count on our engines, so I will not experiment anymore with any other oils. While the study is great there are no scientific data or empirical data to suggest that the present levels of zinc and phosporous are not sufficient on our engines. On the other hand empirical data from various experienced mechanics have shown that the oil consistency and thickness can lead to issues with our 993 engines. So till someone can prove that the Mobil 1 15-50 latest formulation zinc and ph levels are harmful to my engines, then I'm sticking with it.

GeezC4S

Thanks for the heads up Danny. I'll check out my local store with my fingers crossed

tj90

Whats to say that the additive has to be metallic Zn and P? What else is Mobil adding? I wonder if these oil analysis tests are not capturing everything. Im sure the oil companies have more advanced analysis tests to reverse engineer additive pacakges.

AMEN!

Did you guys read the Ferrari link someone posted? If you believe him, oil is designed to operate at 212F (100C). According to Robins site, that is 9 o clock on our oil temp guages. I used to pride myslf for being at 8 oclock and get worried when I hit 9 pm. Heck, even porsche not must have been too worried at oil temps in the 9 pm position - the low speed oil cooler fan kickes in at that point. Im starting to think that perhaps its better for the engine to be at 9pm since that is where the oil is designed to operate at the optimum. Remember Zn & P is to prevent scuffing at the highest temps and pressures- like racng etc. 99% Im never there. As far as visosity, the ferrari link has me wondering as well - I achieve max pressure (5 bar) at 2-3k RPMs when my oil is at 8 oclock (M1 15w50). That means the oil pressure is maxed and Im only half way to redline! The link mentions that when oil pressure is maxed so is the flow. By reducing viscosity (like a 0 or 5w when the oil is cold) would allow for less pressure and more flow. OK my flame suit is on!