HOXXOH

Not to argue, but can you define superior in ways that can be compared with measurable statistical documentation to the Dexron LS? I'm all for performance gains, but I tend to weigh the cost vs the gain.

Racer

Did you read any of the replies in this thread? A CLEAR answer to your question has been posted.

Gearhead Jim

We did a preliminary drain/refill using GM lube on our 2009 (A6 tranny) at less than 10k miles, then again at 50k miles and sent a sample to Blackstone. Their report said that the fluid and the diff were in excellent condition and I should go further on the next change.

It's easy to claim your product is "better" when nobody is doing statistical failure analysis or a valid laboratory comparison.

Cherokee Nation

Did you see my post#? And there is still NO clear answer to my post. If I had 1,000 rwh then I would use Reline or some other oil if needed.

rkj427

because they have more dollars than sense

superior in what way? if it meets the OEM requirements for that particular application, unless heavily modified it is completely useless................

you answered your own question.............why would you use anything else.....................if it works for your application that should be sufficient..........................

both of you had your questions answered, one by himself, and one made an irrelevant statement related to the OP original question................it doesn't need to take 2 or 3 pages to answer a simple question related to lube in a STOCK C6...............................

AORoads

Once had a regional racer, tech, pro crew chief tell me he likes the companies with a batch of engineers and money to test products AND results. He was confident that Mobil1 was one of those companies, and that they and others who did the work for/in addition to GM were well-funded and highly competent. I took that advice most of the time. When I didn't, I learned another lesson. Not to say smalls can't come up with a better mousetrap. I've used all the brands mentioned in this thread at one point or another.

Gearhead Jim

IIRC, member "LDB" is a retired oil company engineer and he said about the same thing. The big company (not Mobil) that is now paying his pension makes a synthetic that's comparable to Mobil 1, but he felt more confident using the Mobil product because his own company did not yet have the decades of experience developing synthetic motor oil like Mobil.

BlindSpot

Hmmm....Crickets......

And I've been anxiously waiting for this reply.

Since there is a thread every month debating this very same issue, I thought it would be refreshing to review a real technical answer to why people would abandon the 100s of test, MTBF and research hours that Tremec, Getrag and GM engineers would put into arriving at a suitable lubricant with the right friction modifiers to maximize the life of the composite fiber material on synchro ring and clutch packs and, instead, go with some boutique oil company that threw a little dye into the oil and somehow magically found a better formula than the engineers did....And they don't even have to warranty these units!

Having had the "pleasure" of rebuilding Tremecs with fiber lined syncro rings, It's hard to recall how many warnings there were in the rebuild instructions to use the correct engineered spec and modified lubricant so that the life of the fiber liners weren't shortened or destroyed on startup. In fact, new synchro rings had to be soaked in the correct lubricant bath for 24 hrs before assembly, and they wanted the gearbox filled shortly after assembly. Tremec even had a warning not to use synthetics in some of their boxes as that increased the wear.

How does someone arrive at the point to experiment with a completely untested aftermarket product? How many remember STP "motor honey" from the sixties? Remember how loooong it took to pour out of the can? Remember all of the claims? Would you put a can of that in your LS2/3 today? There was another miracle product for you. Is marketing that powerful?

AORoads

Not that long ago I used to use several of the products of 1 small co. with two letters as its name. Of course they made a manual trans fluid as well. I had it put in a Getrag-geared stock man trans. In 4K miles, it ruined the trans.

The trans shop was not sure they could a) get a rebuild kit and b) that it would fix the problem, but I was lucky. They accomplished both satisfactorily and several dollars later, the car was good again. Haven't used that little co's. products again, and won't. Dorothy of Wizard of Oz came from the same place.

CriticalmassGT

I agree to some extent. Except for Motor Oil. The Pennzoil Ultra Platinum is a better oil than Mobile 1. Neither are "true" synthetics, but the Pennzoil has fewer impurities and a better additive package with more detergents. They are owned by Shell, and everyone loves their Top Tier fuels right? The Distillation process of the Shale Gas to Liquid gets rid of a lot of the impurities. Both are Group III oils, but if there was a III+ rating, the Pennzoil Ultra Platinum would have it. Mobile 1, not so much. Royal Dutch Shell has three brands of oil, they all use Shale Gas To Liquid technology, and they have the decades of experience under their belt.

HOXXOH

Just so you don't embarrass yourself in the future, the name of the oil company is Mobil.
T-Mobile is a cell phone company.