Here's the page for it:
Mobil said:
It runs like a dream because you have a healthy engine. It has nothing to do with the goop you put in there. Just use a good oil and get rid of the Snake Oil. Pennzoil Ultra Platinum and Rotella Gas Truck are excellent choices for your engine, and cheaper than oil+goop. The owner manual for most vehicles states that adding anything to the oil will void the warranty. I'm sure that the slime-looking oil will stand out if you're ever towed into the dealership.
KIA K5 GT - 2.5 Turbo - would you run it? It calls for 0W-30.
Mobil 1 claims reduced wear and improved friction reduction. I don't know how much improvement I could see in practice.
i wonder if it lacks the TBN buffer for street use.
What would be some of the downsides of using it for 5000 mile / 6 months drain intervals?
Like what?
The lack of TBN buffer. But i'm simply postulating. They don't recommend it for street use, so it is either phosphorus and the cats and/or no need for TBN buffers for racing use.
Sounds like a BITOG experiment in the making!
Just my guess, someone more interested could call or email Mobil.
Can you provide any factual data that supports the claims that these oil additives actually do anything? Long term testing, followed by engine tear downs, or laboratory testing maybe? You chose to share your experience and receive opinions. You got mine, which is that engine oil additives are Snake Oil. A fully formulated oil should perform within its predefined parameters without any help. Altering its chemistry will produce unpredictable and sometimes unwanted results. Do the manufacturers of these additives provide any factual evidence beyond anecdotes that their additives are nothing more than a waste of money? Did they perform any meaningful and long term tests that can show their benefits?
I would be willing to give it a shot if I could somehow be certain that it won't result in anything bad happening to my engine.
No need to call Mobil. This comment answers what Mobil would say:
This is true, and they won't recommend using 5W30 in a 5W20 application or vice versa, even thought it is done everyday. They have a legal department dictating what they can and can't say.
They will recommend 0W alongside 5W motor oils. I guess that makes sense. Still, I have found their recommendations do be generous when compared to some of the other oil producers.
Yes of course, the winter rating is functionally irrelevant to the operating viscosity.
